Relevant bibliographies by topics / Charge tranfer

Academic literature on the topic 'Charge tranfer'

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Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Charge tranfer"

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Fourmigue, M., K. Bechgaard, P. Auban, D. Jérôme, K. Boubekeur, and P. Batail. "Novel charge-tranfer salts based on the isoindolo[1,2,3-de]quinolizinium: An aza-analog of fluoranthene." Synthetic Metals 27, no. 3-4 (December 1988): 231–36. http://dx.doi.org/10.1016/0379-6779(88)90149-x.

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Vogler, A., and H. Kunkely. "Photochemistry of [MCo2(CO)8] (M = Zn, Cd, Hg) induced by metal to metal charge tranfer excitation." Journal of Organometallic Chemistry 355, no. 1-3 (November 1988): 1–6. http://dx.doi.org/10.1016/0022-328x(88)89005-3.

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Caricato, Marco, Silvia Díez González, Idoia Arandia Ariño, and Dario Pasini. "Homochiral BINOL-based macrocycles with π-electron-rich, electron-withdrawing or extended spacing units as receptors for C60." Beilstein Journal of Organic Chemistry 10 (June 6, 2014): 1308–16. http://dx.doi.org/10.3762/bjoc.10.132.

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The “one-pot” synthesis of several homochiral macrocycles has been achieved by using π-electron-rich, electron-deficient or extended aromatic dicarboxylic acids in combination with an axially-chiral dibenzylic alcohol, derived from enantiomerically-pure BINOL. Two series of cyclic adducts with average molecular D 2 and D 3 molecular symmetries, respectively, have been isolated in pure forms. Their yields and selectivities deviate substantially from statistical distributions. NMR and CD spectroscopic methods are efficient and functional in order to highlight the variability of shapes of the covalent macrocyclic frameworks. The larger D 3 cyclic adducts exhibit recognition properties towards C60 in toluene solutions (up to log K a = 3.2) with variable stoichiometries and variable intensities of the charge-tranfer band upon complexation.
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Samia, Anna C. S., John Cody, Christoph J. Fahrni, and Clemens Burda. "The Effect of Ligand Constraints on the Metal-to-Ligand Charge-Tranfer Relaxation Dynamics of Copper(I)−Phenanthroline Complexes: A Comparative Study by Femtosecond Time-Resolved Spectroscopy." Journal of Physical Chemistry B 108, no. 2 (January 2004): 563–69. http://dx.doi.org/10.1021/jp036857a.

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Lind, Thomas, and Hermann Bank. "Effect of Ligand Metal Charge Transfer and Intravalence Charge Transfer Bands on the Colour of Grossular Garnet." Neues Jahrbuch für Mineralogie - Monatshefte 1997, no. 1 (March 26, 1997): 1–14. http://dx.doi.org/10.1127/njmm/1997/1997/1.

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Platonov, Alexei N., Klaus Langer, Christian Chopin, Michael Andrut, and Michail N. Taran. "Fe2+ -Ti4+ charge-transfer in dumortierite." European Journal of Mineralogy 12, no. 3 (May 31, 2000): 521–28. http://dx.doi.org/10.1127/ejm/12/3/0521.

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Bardsley, J. N., P. Gangopadhyay, and B. M. Penetrante. "Symmetric charge transfer to multiply charged ions." Physical Review A 40, no. 5 (September 1, 1989): 2742–44. http://dx.doi.org/10.1103/physreva.40.2742.

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Platonov, Alexej N., Klaus Langer, Stanislas S. Matsuk, Mikhail N. Taran, and Xiaorui Hu. "Fe2+-Ti4+ charge-transfer in garnets from mantle eclogites." European Journal of Mineralogy 3, no. 1 (February 21, 1991): 19–26. http://dx.doi.org/10.1127/ejm/3/1/0019.

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Vikhnin, V. S., A. A. Kaplyanskii, A. B. Kutsenko, G. K. Liu, J. V. Beitz, and S. E. Kapphan. "“Charge transfer–lattice” clusters induced by charged impurities." Journal of Luminescence 94-95 (December 2001): 775–79. http://dx.doi.org/10.1016/s0022-2313(01)00364-7.

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Abbasov, I. I., and J. I. Huseynov. "Charge-Transfer Processes in (SnS)1 – x(PrS)x Alloys." Ukrainian Journal of Physics 62, no. 10 (November 2017): 883–88. http://dx.doi.org/10.15407/ujpe62.10.0883.

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Dissertations / Theses on the topic "Charge tranfer"

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Das, Prolay. "Long-Range Charge Transfer in Plasmid DNA Condensates and DNA-Directed Assembly of Conducting Polymers." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19856.

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Long-distance radical cation transport was studied in DNA condensates where linearized pUC19 plasmid was ligated to an oligomer and transformed into DNA condensates with spermidine. DNA condensates were detected by Dynamic Light Scattering and observed by Transmission Electron Microscopy. Introduction of charge into the condensates causes long-distance charge migration, which is detected by reaction at the remote guanines. The efficiency of charge migration in the condensate is significantly less than it is for the corresponding oligomer in solution. This result is attributed to a lower mobility for the migrating radical cation in the condensate, caused by inhibited formation of charge-transfer-effective states. Radical cation transport was also studied in DNA condensates made from an oligomer sandwiched between two linearized plasmids by double ligation. Unlike the single ligated plasmid condensates, the efficiency of charge migration in the double ligated plasmid-condensates is high, indicative of local structural and conformational transformation of the DNA duplexes. Organic monomer units having extended ð-conjugation as part of a long conducting polymer was synthesized and characterized. The monomer units were covalently attached to particular positions in DNA oligonucleotides by either the convertible nucleotide approach or by phosphoramidite chemistry. Successful attachment of the monomer units to DNA were confirmed by mass spectral analysis. The DNA-conjoined monomer units can self assemble in the presence of complementary sequences which act as templates that can control polymer formation and structure. By this method the para-direction of the polymer formation can be enforced and may be used to generate materials having nonrecurring, irregular structures.
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MARTINEZ, POZZONI UMBERTO LUIGI. "Oxide ultra-thin films on metals." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/7463.

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When the thickness of an oxide film is below a nm (few atomic layers) the interaction with the metal substrate, together with structural and morphology changes, can lead to completely different chemistry with espect to thicker films and can lead to new and unprecedented phenomena. This thesis focuses on the study of the structure and properties of different ultrathin oxide films epitaxially grown on metal subtrates and their interactions with adsorbed metal atoms and clusters.
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Appling, Jeffrey Robert. "Gaseous charge transfer reactions of multiply charged ions." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/27382.

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Boichard, Benoît. "Synthèse et mise en forme de matériaux nanostructurés pour la photosensibilisation de réactions d’oxydoréduction." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S048/document.

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La perspective d'une société utilisant l'énergie de la lumière du soleil pour séparer la molécule d'eau en dihydrogène et en dioxygène, ces deux gaz servant de moyens de stockage et de vecteurs d'énergie, nécessite de nombreux développements. En particulier, il est nécessaire de choisir un matériau pouvant absorber la lumière et transférer son énergie aux charges électriques afin de générer un courant électrique. Parmi toutes les possibilités, ce mémoire étudie l'applicabilité des bâtonnets semiconducteurs de tailles nanométriques constitués d'un cœur de séléniure de cadmium et d'une coquille de sulfure de cadmium. Profitant des méthodes décrites ces dernières années et d'une méthodologie de fonctionnalisation, les objets obtenus présentent une grande monodispersité et peuvent être dispersés en milieu aqueux. Les propriétés photoélectrochimiques des nanobâtonnets sont explorées par microscopie électrochimique. Cette méthode permet de déterminer s'il y a un transfert de charge entre des molécules en solution et un substrat constitué des bâtonnets, et le cas échéant son sens. Ainsi les nanoparticules, soumises à une excitation lumineuse, transfèrent des électrons vers les molécules dans l'ensemble des cas explorés, révélant ainsi un caractère plus réducteur que la para-benzoquinone. Ce transfert est réalisé d'autant plus rapidement que le rapport entre la longueur et le diamètre des bâtonnets augmente, jusqu'à un optimum, mais aussi que la taille de la couche organique isolante les recouvrant diminue, comme l'ont révélé des suivis de réduction d'une sonde rédox moléculaire colorée, la résazurine. Ces charges ont été mises à profit pour fonctionnaliser les nanoparticules, au travers de la réduction d'un pont disulfure ou d'un sel d'or. Enfin des stratégies ont été explorées pour permettre aux particules de réaliser la réduction photosensibilisée de l'eau, au travers de la synthèse d'une cobaloxime, un catalyseur moléculaire, ou de la réduction de sels métalliques à propriété catalytique tels que le cobalt et le nickel
The development of a society based on solar energy requires a way to store it. One possibility consists in water splitting that needs a material to collect and transform the energy contained in light beam in an electric charges movement. Among all possibility, we hereby explore the applicability of nanometers-sized semiconductor rods composed of a cadmium selenide core and a cadmium sulfide shell. Based on methods already developed and a new functionalization methodology, the obtained particles exhibit a high monodispersity and can be dispersed in water, a useful property for the final purpose. Their photo-electrochemical properties have been explored by electrochemical microscopy that allowed to determine whether there is charge transfer between mediators in solution and quantum rods deposited as substrate and its direction. It reveals that under light irradiation and in all cases herein experimented, they transfer electrons to the mediators, making them more reductive than para-benzoquinone. This transfer is fastened when the ratio between the length and the diameter of the rods increased until an optimum, but also when the width of the organic isolating shell decreases, as revealed by time-resolved reduction of resazurin, a colored rédox molecular probe. These charge transfer have been used to functionalize particles by reduction of a disulfide bridge or a gold salt. Finally, strategies have been explored to make these quantum rods able to photosensibilized water reduction through synthesis of a cobaloxime, a molecular catalyst, or metal salt reduction as cobalt and nickel known to exhibit catalytic activity
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Mohideen, Mohamed Farhaan. "Charge transfer process." Thesis, Staffordshire University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246022.

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Shen, Jie. "Processus de transfert de charge lors de l'intéraction d'ions de Li avec des surfaces métalliques et agrégats supportés." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112142.

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Ce travail porte sur la neutralization résonnante d’ions Li+ sur des métaux et agrégatsmétalliques supportés. La neutralization sur Pd(100) a été étudié, pour différentsparamètres. La neutralisation s’avère très efficace sur cette surface avec un travail desortie grand et est en contradiction avec ce qu’on attend dans le cadre des modèlestraditionnels. Il est proposé qu’une description du processus RCT modifié, issued’études précédentes sur des métaux nobles, doit être utilisé. Dans celle ci desprocessus de neutralisation survenant à des distances atome- surface faible ont lieu etaussi un comportement adiabatique du système aux faible énergies de collisions mèneà une neutralization efficace.Les résultats de l’étude des processus de transfert d’électrons lors de l’interactiond’ions de Li+ avec des agrégats d’or supporté sur HOPG avec Al2O3 sont présentés etdiscuté. L’imagerie STM pour les agrégats d’or supporté sur un substrat HOPG viergeet aussi un substrat de HOPG bombardé par des ions de AR sont présentés. Lesobservations révèlent que agrégats d’or forment préférentiellement des chaines 1D lelong des marches sur HOPG vierge. Dans le cas de HOPG bombardé, la taille et lahauteur des agrégats sont dépendants des défauts de surface.Nous avons trouvé que la neutralisation est très efficace sur les petits agrégats et engénéral est beaucoup plus grande que sur des surfaces de cristaux d'or. Nous montronsdes effets liés à la nature du substrat, comme dans le cas de l’alumine ou le cas desdifférences observées sur des chaines d’agrégats sur HOPG vierge et les agrégatsformés sur des défauts
The present work investigates the neutralization of Li+ ions on metals and supportedmetal clusters. Neutralization on a transition metal surface Pd (100) for differentparameters was studied. Highly efficient neutralization on this surface with a highwork functions was observed and contradicts our traditional views on resonant chargetransfer (RCT) mechanism. A modified RCT picture involving new neutralizationprocesses occurring at a short atom-surface distance and an adiabatic behaviourleading to efficient neutralization at large distances, that has emerged from previousstudies on noble metal surfaces appears in qualitative agreement with our data.The experimental results on the dependence of the Li neutralization on the Auclusters supported on different substrates are reported and discussed. As acomplement to this, a STM study into the morphology of Au nanoparticles on apristine HOPG substrate as well as Ar+ ions sputtered HOPG substrate has beenperformed. The observations reveal that Au clusters preferentially form onedimensional chains along steps on pristine HOPG. In the case of Ar+ ions sputteredHOPG substrate, the size and height of cluster are dependent on surface defects.We found that neutralization is very efficient on small clusters and in general muchlarger than on surfaces of gold crystals. We demonstrate existence of strongdifferences as a function of cluster support type as in case of alumina supports orcluster chains on HOPG and clusters on defects on HOPG terraces
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Onyemauwa, Frank Okezie. "Investigation of the Role of Groove Hydration and Charged Nucleosides in DNA Charge Transfer." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11634.

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Structural analyses of DNA oligonucleotides indicate the presence of bound water molecules in the major and minor grooves of DNA. These water molecules participate in DNA charge transfer by their reaction with guanosine radical cation to form 7,8-dihydro-8-oxo-guanine (8-oxoG), which when treated with a base leads to DNA strand cleavage. We probed the reaction of guanosine radical cation with water with series of alkyl substituted cytidines and thymidines by incorporating the modified nucleosides into anthraquinone linked DNA duplexes and irradiating them with UV light at 350 nm. The incorporation of these hydrophobic substituents disrupt the DNA spine of hydration, and we have observed that these modifications in the major and minor groove do not effect the trapping or long distance hopping of radical cations in DNA. The second part of the work reported herein examines the role of charged nucleosides in long range charge transfer in duplex DNA. DNA methylation is a naturally occurring process mediated by enzymes responsible for such functions in biological systems. Hypermethylation of DNA can also occur as a result of environmental alkylating agents leading to mutation of the affected cells. Methylation of the ring nitrogen of a purine base can introduce a positive charge in the ring resulting in the cleavage of the glycosidic bond of the nucleoside. To understand the role of a charged nucleoside on charge transfer in DNA, we designed and synthesized cationic nucleoside mimics, which were incorporated into anthraquinone-linked DNA strands and irradiated at 350 nm. The presence of the cationic bases on the duplexes inhibits the migrating hole from hopping along the DNA strand, and induces a prominent local structural distortion of the DNA as a result of the charged nucleobase.
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Herman, Leslie. "Ru(II) under illumination: a study of charge and energy transfer elementary processes." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210399.

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Une compréhension sans cesse plus pointue des processus élémentaires de transferts de charges et d’énergie, qui sont à la base même de nombreux processus biologiques, permet non seulement l’élaboration mais aussi l’amélioration de la mise au point de molécules photoactives utiles dans différentes applications. C'est le cas (i) de systèmes moléculaires et supramoléculaires destinés à mimer efficacement la photosynthèse, ou encore (ii) de molécules photoactives capables d’interagir avec des macromolécules biologiques et d’induire une transformation de ces biomolécules. C’est dans ce cadre général que s’inscrit l’élaboration de nouveaux complexes polyazaaromatiques de Ru(II) capables d’interagir avec la double hélice d’ADN et de photoréagir avec sa base la plus réductrice, la guanine, par transfert d’électron photoinduit. C’est sur la base de ces processus que des nouveaux agents antitumoraux photoactivables ont pu être développés. L’utilisation de complexes de Ru(II) dans le design d’entités supramoléculaires polymétalliques destinées à jouer le rôle de collecteurs de lumière et permettant ainsi de mimer les systèmes d’antennes naturels s’intègre également dans cette démarche.

L’ensemble de notre travail s’est concentré sur ces deux domaines d’applications. Par l’étude de différents processus de transfert de charges/d’énergie au sein des complexes seuls (processus intramoléculaires) ou en interaction avec un environnement spécifique (processus intermoléculaires), nous avons souhaité mettre en évidence l’intérêt de l’utilisation d’un nouveau ligand plan étendu, le tpac, au sein de complexes du Ru(II). Un tel ligand permet en effet de conférer d’une part une affinité élevée des complexes résultants pour l’ADN, et d’autre part, de par sa nature pontante, de connecter des unités métalliques entre elles au sein d’entités supramoléculaires de taille importante.

Les propriétés photophysiques de quatre complexes basés sur le ligand plan étendu tpac, le [Ru(phen)2tpac]2+ (P) et son homologue dinucléaire le [(phen)2Ru tpac Ru(phen)2]4+ (PP) (à base de ligands ancillaires phen), ainsi que le [Ru(tap)2tpac]2+ (T) et son homologue dinucléaire le [(tap)2Ru tpac Ru(tap)2]4+ (TT) (à base de ligands ancillaires tap), ont été étudiées et comparées entre elles.

L’examen de ces propriétés, d’abord pour les complexes seuls en solution, en parallèle avec celles de complexes dinucléaires contenant un ligand pontant PHEHAT, a permis de mettre en évidence l’importance de la nature du ligand pontant utilisé. Ces résultats ont ainsi révélé qu’un choix judicieux du ligand pontant permet de construire des entités de grande taille capables de transférer l’énergie lumineuse vers un centre (cas du ligand PHEHAT), ou, au contraire, de relier entre elles des entités ne s’influençant pas l’une l’autre d’un point de vue photophysique (cas du ligand tpac).

Les propriétés des complexes du tpac, étudiés cette fois en présence de matériel génétique (mononucléotide GMP, ADN ou polynucléotides synthétiques), se sont révélées très différentes selon que le complexe portait des ligands ancillaires phen (P, PP) ou tap (T, TT). Seuls les complexes à base de tap sont en effet photoréactifs envers les résidus guanine. Nous avons dès lors focalisé cette partie de notre travail sur les deux complexes T et TT. Cette photoréaction, ainsi que le transfert d’électron photoinduit entre ces complexes excités et la guanine, ont pu être mis en évidence par différentes techniques de spectroscopie d’émission tant stationnaire que résolue dans le temps, ainsi que par des mesures d’absorption transitoire dans des échelles de temps de la nano à la femto/picoseconde. L’étude du comportement photophysique des complexes en fonction du pH a en outre révélé de manière très intéressante que, pour des études en présence d’ADN, la protonation des états excités des complexes devait être considérée. Les résultats de cette étude nous ont fourni des pistes quant à l’attribution des processus observés en absorption transitoire.

Le transfert d’électron a également fait l’objet d’une étude par des méthodes théoriques. Ces calculs ab initio ont permis de mettre en évidence une faible influence de l’énergie de réorganisation sur la vitesse de transfert d’électron, qui semble dépendre plus sensiblement de la non-adiabaticité du processus, mais surtout de l’énergie libre de la réaction et d’un éventuel couplage à un transfert de proton.

L’ensemble des résultats obtenus avec les complexes T et TT en présence de matériel génétique, qui, de manière assez inattendue, sont très semblables, indiquent que ces complexes présentent tous deux un grand intérêt pour le développement de nouvelles drogues antitumorales photoactivables.


Doctorat en Sciences
info:eu-repo/semantics/nonPublished

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Stanger, Jonathan Jeffrey. "Charge Transfer Mechanisms in Electrospinning." Thesis, University of Canterbury. Physics and Astronomy, 2008. http://hdl.handle.net/10092/1667.

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Electrospinning is a method of producing nano structured material from a polymer solution or melt using high strength electric fields. It is a process that has yet to find extensive industrial application yet shows promise if obstacles such as low rate of production overcome perhaps by more complete theoretical modelling. This work examines the effects of adding an ionic salt to a solution of poly(vinyl alcohol) in water. The direct effect was an increase the charge density and electric current. It was found that an increase in charge density decreases the mass deposition rate and forms a thinner initial jet. When the sign of the charge on the polymer solution was changed from positive to negative the charge density increased and the initial jet diameter and mass deposition rate also decreased. It was proposed that a smaller radius of curvature is formed by the Taylor cone at higher charge densities resulting in a smaller “virtual orifice”. The extent of the bending instability was explored and it was found that adding ionic salt results in a decrease in the bending instability resulting in thicker fibres. Changing the sign of the charge on the polymer solution from positive to negative resulted in an increase in the bending instability and resulted in thinner fibres. The charge transfer mechanisms used in different electrospinning models are explored and some assumptions not explicitly stated are discussed. From this discussion a generalized equation describing the charge transport mechanisms is proposed.
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Lindner, Susi. "Charge transfer at phthalocyanine interfaces." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-146526.

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Using X-ray photoelectron (XPS) and X-ray absorbtion spectroscopy (XAS) we demonstrate charge transfer at an interface between two transition metal phthalocyanines, MnPc and F16CoPc, resulting in charged MnPc + and F16CoPc -, species. Density functional theory calculations reveal that a hybrid state is formed between the two types of phthalocyanines, which causes this charge transfer. For the hybrid state the Mn3dxz interacts with the Co 3dz2 orbital leading to a two-level system. Moreover, we have prepared mixed films out of this pair, which were characterized also by means of electron energy-loss spectroscopy. Our data reveal the formation of MnPc/F16CoPc charge transfer dimers in analogy to the heterojunction. The electronic excitation spectrum of these blends is characterized by a new low energy excitation at 0.6 eV.
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Books on the topic "Charge tranfer"

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Misra, Ramprasad, and S. P. Bhattacharyya. Intramolecular Charge Transfer. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527801916.

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J, Mattay, and Baumgarten M, eds. Electron transfer. Berlin: Springer-Verlag, 1994.

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V, Sweedler Jonathan, Ratzlaff Kenneth L, and Denton M. Bonner, eds. Charge-transfer devices in spectroscopy. New York: VCH, 1994.

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Horváth, Ottó. Charge transfer photochemistry of coordinationcompounds. New York: VCH, 1993.

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Kagakkai, Nihon, ed. Denshi idō: Electron transfer. Tōkyō-to Bunkyō-ku: Kyōritsu Shuppan, 2013.

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J, Mattay, Fox Marye Anne 1947-, Lymar S. V, Fox Marye Anne 1947-, Gust Devens, Willner Itamar, and Mattay J, eds. Photoinduced electron transfer III. Berlin: Springer-Verlag, 1991.

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Miller, R. J. Dwayne, 1956-, ed. Surface electron transfer processes. New York: VCH, 1995.

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Kuznetsov, A. M. Charge transfer in physics, chemistry and biology: Physical mechanisms of elementary processes and an introduction to the theory. Amsterdam: Gordon and Breach Publishers, 1995.

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1938-, Müller Achim, ed. Electron and proton transfer in chemistry and biology. Amsterdam: Elsevier, 1992.

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1946-, Schuster G. B., and Angelov Dimitŭr Simeonov, eds. Long-range charge transfer in DNA. Berlin: Springer, 2004.

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Book chapters on the topic "Charge tranfer"

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Kimura, Y., Y. Takebayashi, and N. Hirota. "Electron Tranfer in the Hexamethylbenzene/Tetracyanoethylene Charge-Transfer Complex in the Supercritical Fluids." In Springer Series in Chemical Physics, 235–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80314-7_101.

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Gooch, Jan W. "Charge-Transfer." In Encyclopedic Dictionary of Polymers, 136. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2223.

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Charnley, Steven B. "Charge Transfer." In Encyclopedia of Astrobiology, 427–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_264.

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Stebbings, R. F. "Charge Transfer." In Advances in Chemical Physics, 195–246. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470143568.ch6.

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Charnley, Steven B. "Charge Transfer." In Encyclopedia of Astrobiology, 285. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_264.

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Charnley, Steven B. "Charge Transfer." In Encyclopedia of Astrobiology, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_264-3.

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Rettig, Wolfgang. "Photoinduced charge separation via twisted intramolecular charge transfer states." In Electron Transfer I, 253–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-57565-0_78.

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Mori, Takehiko. "Charge-Transfer Complexes." In Electronic Properties of Organic Conductors, 253–310. Tokyo: Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-55264-2_7.

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Dennerl, Konrad. "Charge Transfer Reactions." In High-Resolution X-Ray Spectroscopy, 57–91. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-9884-2_6.

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Barandiarán, Zoila, Jonas Joos, and Luis Seijo. "Charge Transfer States." In Springer Series in Materials Science, 195–225. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94984-6_7.

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Conference papers on the topic "Charge tranfer"

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Havener, C. C. "Low Energy Charge Transfer With Multi-Charged Ions Using Merged Beams." In ATOMIC PROCESSES IN PLASMAS: 14th APS Topical Conference on Atomic Processes in Plasmas. AIP, 2004. http://dx.doi.org/10.1063/1.1824874.

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Lee, Sebok, Myungsam Jen, Gisang Lee, and Yoonsoo Pang. "Structural Changes of Nitroaromatic Molecules During the Intramolecular Charge Transfer." In Frontiers in Optics. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/fio.2020.fth2d.5.

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Bilbao, Argenis V., Michael G. Giesselmann, and Stephen B. Bayne. "Charge transfer-based sensorless voltage feedback in HV capacitor chargers." In 2016 IEEE International Power Modulator and High Voltage Conference (IPMHVC). IEEE, 2016. http://dx.doi.org/10.1109/ipmhvc.2016.8012811.

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Han, Weiji, and Liang Zhang. "Charge transfer and energy transfer analysis of battery charge equalization." In 2015 IEEE International Conference on Automation Science and Engineering (CASE). IEEE, 2015. http://dx.doi.org/10.1109/coase.2015.7294250.

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Bagchi, B., and V. Krishnan. "SOLVATION DYNAMICS & CHARGE TRANSFER REACTIONS." In Conference on Solvation Dynamics & Charge Transfer Reactions. WORLD SCIENTIFIC, 1991. http://dx.doi.org/10.1142/9789814540018.

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Cevheri, Necmettin, and Minami Yoda. "Evanescent-Wave Particle Velocimetry Studies of Electrokinetically Driven Flows: Divalent Counterion Effects." In ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75274.

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Characterizing the mainly incompressible and laminar flows of aqueous electrolyte solutions through channels with an overall dimension of O(1–100 μm) is of interest in a variety of microfluidics applications. Solid surfaces such as the channel wall become (usually negatively) charged due to direct ionization or dissociation of surface groups, where the charge is typically characterized by the wall zeta-potential ζw. The surface in turn attracts mobile counterions from the fluid to form a (usually positively) charged screening, or electric double, layer (EDL). An external electric field can therefore be used to “pump” fluids through microfluidic Labs-on-a-Chip (LOC) by driving the charged fluid in the EDL. The resulting electroosmotic flow (EOF) is uniform outside the EDL, which has a thickness less than 50 nm in most cases. This uniform flow results in a more favorable scaling of the volume flowrate with channel diameter for microchannels, and also has less convective dispersion than shear flows. Electroosmotic flow is, however, very sensitive to changes in ζw. Various studies have shown, for example, that adding multivalent counterions to a monovalent electrolyte solution can greatly change ζw through both electrostatic and chemical interactions, even leading to “charge inversion” where the zeta-potential changes its sign. Evanescent-wave particle velocimetry, which tracks the motion of colloidal fluorescent tracer particles illuminated by evanescent waves within ∼400 nm of the wall, was therefore used to study the flow of various aqueous monovalent electrolyte solutions with small amounts of divalent cations such as Mg++ driven by an electric field through channels with a minimum dimension of ∼30 μm. The technique measures both the velocity components parallel to the wall and the steady-state distribution of these near-wall tracers. In these experiments, the tracers are convected parallel to the wall by both the EOF and directly by the applied electric field via electrophoresis because the surfaces of the particles also become negatively charged when suspended in the electrolyte solution. The electrophoretic contribution to the measured particle velocity was determined by measuring the particle zeta-potential with light scattering, and subtracted from the particle velocity to determine the actual EOF velocity.
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Beiersdorfer, P. "X-ray signatures of charge transfer reactions involving cold, very highly charged ions." In The 21st international conference on the physics of electronic and atomic collisions (21 IPEAC). AIP, 2000. http://dx.doi.org/10.1063/1.1302692.

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Cunningham, Ethan, Martin Beyer, Milan Oncak, and Christian van der Linde. "PHOTOINDUCED CHARGE TRANSFER PROCESSES." In 2021 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.fj10.

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Chen, Bin, and Bingmei Fu. "A Charge-Diffusion-Filtration Model for Endothelial Surface Glycocalyx." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56149.

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Endothelial surface glycocalyx plays an important role in the regulation of microvessel permeability by possibly changing its charge and configuration. To investigate the mechanisms of how surface properties of the endothelial cells control the changes in microvessel permeability, we extended the electrodiffusion model developed by Fu et al. (Am. J. Physiol. 284:H1240-1250, 2003), which is for the interendothelial cleft with a negatively charged surface glycocalyx layer, to include the filtration due to hydrostatic and oncotic pressures across the microvessel wall as well as the electrical potential across the glycocalyx layer. On the basis of the hypotheses proposed by Curry (Microcirculation 1(1): 11–26, 1994), the predictions from this electrodiffusion-filtration model provide a remarkably good agreement with experimental data for permeability of negatively charged α-lactalbumin summarized in Curry (Microcirculation 1(1): 11–26, 1994) under various conditions. In addition, we applied this new model to describe the transport of negatively charged macromolecules, bovine serum albumin (BSA), across venular microvessels in frog mesentery. A very interesting prediction is that the convective component of albumin transport is greatly diminished by the presence of a negatively charged glycocalyx under both normal and increased permeability conditions.
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Xu, Dongyan, Deyu Li, Yongsheng Leng, and Yunfei Chen. "Molecular Dynamics Simulation of Water and Ion Profiles Near Charged (100) and (111) Silicon Surfaces." In ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASMEDC, 2008. http://dx.doi.org/10.1115/mnht2008-52248.

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Fundamental studies in nanofluidics have attracted significant attention in the past decade since the success of nanofluidic devices depends on a thorough understanding of the fluidic, ionic, and molecular behaviors in highly confined nano-environments. In this work, molecular dynamics simulations of the effect of surface charge densities on the ion and water distribution in the near wall region has been performed for both (100) and (111) silicon surfaces. We demonstrate that surface charges not only interact with mobile ions in the electrolyte, but also interact with water molecules due to their polarizability and hence influence the orientation of water molecules close to the charged surface. It is shown that as the surface charge density increases, water molecules within ∼ 5 Å from the (100) silicon surface can evolve from one layer into two layers and meanwhile, the orientation of water molecules is more aligned instead of randomly distributed. However, no extra water layer is observed near a (111) silicon surface even under a surface charge density of as high as −0.2034 C/m2. The above phenomenon may be related to the different surface atom densities of (100) and (111) silicon surfaces.
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Reports on the topic "Charge tranfer"

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Milinazzo, Jared Joseph. Energy Transfer of a Shaped Charge. Office of Scientific and Technical Information (OSTI), November 2016. http://dx.doi.org/10.2172/1334941.

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Brus, Louis. Graphene Charge Transfer, Spectroscopy, and Photochemical Reactions. Office of Scientific and Technical Information (OSTI), January 2017. http://dx.doi.org/10.2172/1341618.

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Carroll, David L. Charge Transfer Nanocomposites: The Effects of Scale-Hierarchy. Fort Belvoir, VA: Defense Technical Information Center, December 2006. http://dx.doi.org/10.21236/ada468765.

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Hervier, Antoine. Charge Transfer and Support Effects in Heterogeneous Catalysis. Office of Scientific and Technical Information (OSTI), December 2011. http://dx.doi.org/10.2172/1076791.

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Last, Isidore, and Thomas F. George. Cooperative Absorption-Induced Charge Transfer in a Solid. Fort Belvoir, VA: Defense Technical Information Center, December 1990. http://dx.doi.org/10.21236/ada229553.

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Law, Edward, Samuel Gan-Mor, Hazel Wetzstein, and Dan Eisikowitch. Electrostatic Processes Underlying Natural and Mechanized Transfer of Pollen. United States Department of Agriculture, May 1998. http://dx.doi.org/10.32747/1998.7613035.bard.

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The project objective was to more fully understand how the motion of pollen grains may be controlled by electrostatic forces, and to develop a reliable mechanized pollination system based upon sound electrostatic and aerodynamic principles. Theoretical and experimental analyses and computer simulation methods which investigated electrostatic aspects of natural pollen transfer by insects found that: a) actively flying honeybees accumulate ~ 23 pC average charge (93 pC max.) which elevates their bodies to ~ 47 V likely by triboelectrification, inducing ~ 10 fC of opposite charge onto nearby pollen grains, and overcoming their typically 0.3-3.9 nN detachment force resulting in non-contact electrostatic pollen transfer across a 5 mm or greater air gap from anther-to-bee, thus providing a theoretical basis for earlier experimental observations and "buzz pollination" events; b) charge-relaxation characteristics measured for flower structural components (viz., 3 ns and 25 ns time constants, respectively, for the stigma-style vs. waxy petal surfaces) ensure them to be electrically appropriate targets for electrodeposition of charged pollen grains but not differing sufficiently to facilitate electrodynamic focusing onto the stigma; c) conventional electrostatic focusing beneficially concentrates pollen-deposition electric fields onto the pistill tip by 3-fold as compared to that onto underlying flower structures; and d) pollen viability is adequately maintained following exposure to particulate charging/management fields exceeding 2 MV/m. Laboratory- and field-scale processes/prototype machines for electrostatic application of pollen were successfully developed to dispense pollen in both a dry-powder phase and in a liquid-carried phase utilizing corona, triboelectric, and induction particulate-charging methods; pollen-charge levels attained (~ 1-10 mC/kg) provide pollen-deposition forces 10-, 77-, and 100-fold greater than gravity, respectively, for such charged pollen grains subjected to a 1 kV/cm electric field. Lab and field evaluations have documented charged vs. ukncharged pollen deposition to be significantly (a = 0.01-0.05) increased by 3.9-5.6 times. Orchard trials showed initial fruit set on branches individually treated with electrostatically applied pollen to typically increase up to ~ 2-fold vs. uncharged pollen applications; however, whole-tree applications have not significantly shown similar levels of benefit and corrective measures continue. Project results thus contribute important basic knowledge and applied electrostatics technology which will provide agriculture with alternative/supplemental mechanized pollination systems as tranditional pollen-transfer vectors are further endangered by natural and man-fade factors.
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Khalil, Munira. Correlating electronic and vibrational motions in charge transfer systems. Office of Scientific and Technical Information (OSTI), June 2014. http://dx.doi.org/10.2172/1168632.

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Baker, Lawrence Robert. Charge Transfer and Catalysis at the Metal Support Interface. Office of Scientific and Technical Information (OSTI), July 2012. http://dx.doi.org/10.2172/1174166.

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Piotr Piotrowiak. Electronic and Nuclear Factors in Charge and Excitation Transfer. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/832834.

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John F. Endicott. Photoinduced Charge and Energy Transfer Processes in Molecular Aggregates. Office of Scientific and Technical Information (OSTI), October 2009. http://dx.doi.org/10.2172/966130.

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