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Dissertations / Theses on the topic 'Transition metals; Catalytic systems'

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1

Smith, Virginia Clare Moncrieff. "Mechanistic studies of catalytic C-C bond formation." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240383.

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2

Landon, James Hugh Pearson. "Computational EPR, ENDOR and DFT studies of catalytic transition metal systems." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54786/.

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The following thesis discusses the combined use of electron paramagnetic resonance (EPR) spectroscopy, electron nuclear double resonance (ENDOR) spectroscopy and density functional theory (DFT) calculations to investigate a number of transition metal catalyst systems the binding of epoxide molecules by a vanadyl analogue of the catalytically important metallosalen class of compounds the binding of a chiral aryl amine by a copper salen complex and the incorporation of copper(II) ions in aluminophosphate materials. Two classes of epoxide selectivity by a vanadyl salen derivative are presented he
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3

Robinson, Simon Jonathan. "Catalytic and selective transition metal mediated isomerisations of allylic alkoxides to enolates." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286152.

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4

Riemer, Daniel. "Transition Metal-Free Catalytic Systems for the Utilization of CO2 to Achieve Valuable Chemicals." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-14D4-5.

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5

Riemer, Daniel [Verfasser]. "Transition Metal-Free Catalytic Systems for the Utilization of CO2 to Achieve Valuable Chemicals / Daniel Riemer." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1220909319/34.

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6

Manrique, Salas Ester. "Development of new transition metal complexes for their use in sustainable catalytic processes and as antitumoral agents." Doctoral thesis, Universitat de Girona, 2018. http://hdl.handle.net/10803/668830.

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In this thesis we present the synthesis and characterization of different types of ruthenium complexes containing N-donor ligands together with monodentate ligands, along with their complete characterization through spectroscopic and electrochemical techniques. The complexes have been evaluated as catalysts for olefin epoxidation and nitrile hydration in 2/1 homogeneous phase. On the other hand, taking into account the importance and advantages of the heterogeneous catalysis, we have carried out the immobilization of some of these complexes on silica-type supports and magnetic nan
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7

Lesieur, Mathieu. "Cu and Pd complexes of N-heterocyclic carbenes : catalytic applications as single and dual systems." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7999.

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Nowadays, the requirement to design highly valuable compounds is undoubtedly one of the major challenges in the field of organic and organometallic chemistry. The use of the versatile and efficient N-heterocyclic carbenes (NHCs) combined with transition metals represents a key feature in modern organometallic chemistry and homogeneous catalysis. In the course of this thesis, the straightforward design and synthesis of a library of Pd(0) bearing NHC ligands was achieved. Their catalytic performances (Chapter 1) and their phosphorescence properties in solution (Chapter 2) were disclosed. Current
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8

González, Miera Greco. "Homogeneous and heterogeneous Cp*Ir(III) catalytic systems : Mechanistic studies of redox processes catalyzed by bifunctional iridium complexes, and synthesis of iridium-functionalized MOFs." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-143343.

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The purpose of this doctoral thesis is to investigate and develop catalytic processes mediated by iridium(III) complexes. By understanding the mechanisms, the weaknesses of the designed catalysts can be identified and be overcome in the following generation. The thesis is composed of two general sections dedicated to the synthesis and applications of homogeneous catalysts and to the preparation of heterogeneous catalysts based on metal-organic frameworks (MOFs). After a general introduction (Chapter 1), the first part of the thesis (Chapters 2-4, and Appendix 1) covers the use of several homog
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9

Dombrowski, James Michael. "Catalytic Cleavage of Carbon-Carbon Sigma Bonds Using Transition Metals." Thesis, Boston College, 2005. http://hdl.handle.net/2345/407.

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Thesis advisor: Lawrence T. Scott<br>The focus of this project was to probe the ability of various transition metal complexes to cleave carbon-carbon bonds in a C30H12 hemifullerene. The hemifullerene was synthesized in our lab from commercial 1-tetralone and bromonaphthalene in six steps. Palladium and nickel complexes were used to open the five membered rings along the periphery of the C30H12 bowl. Diphosphine complexes of nickel were capable of opening either all three five membered rings or one of the periphery five membered rings and the central six membered ring<br>Thesis (BS) — Boston C
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10

Morello, Glenn. "Modeling Transition Metal Chemistry for Catalytic Functionalization of Molecules." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84255/.

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The diversity of transition metal complexes allows for a wide range of chemical processes to be mediated by the metal, from catalysis to surface chemistry. Investigations into the structure and electronic configuration of transition metal complexes allow for tuning of desired species by modifications to the ligands and/or metals to achieve more efficient thermodynamics and kinetics for the process of interest. Transition metals, often used in catalysts for a number of important processes, require detailed descriptions of intermediates, transition states and products to fully characterize a rea
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11

Ekström, Jesper. "Transition Metal Hydrides : Biomimetic Studies and Catalytic Applications." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7187.

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In this thesis, studies of the nature of different transition metal-hydride complexes are described. The first part deals with the enantioswitchable behaviour of rhodium complexes derived from amino acids, applied in asymmetric transfer hydrogenation of ketones. We found that the use of amino acid thio amide ligands resulted in the formation of the R-configured product, whereas the use of the corresponding hydroxamic acid- or hydrazide ligands selectively gave the S-alcohol. Structure/activity investigations revealed that the stereochemical outcome of the catalytic reaction depends on the liga
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12

Suntivich, Jin. "Interplay between electronic structure and catalytic activity in transition metal oxide model system." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76134.

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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 109-125).<br>The efficiency of many energy storage and conversion technologies, such as hydrogen fuel cells, rechargeable metal-air batteries, and hydrogen production from water splitting, is limited by the slow kinetics of the oxygen electrochemical reactions. Transition-metal oxides can exhibit high catalytic activity for oxygen electrochemical reactions, which can be used to improve efficiency and cost o
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13

Roe, Gerard. "Surface and catalytic chemistry of Ni/Sm systems." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282064.

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14

Källström, Klas. "Catalytic asymmetric ketone and alkene reductions using transition metal complexes /." Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6839.

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15

Kulik, Heather J. "First-principles transition-metal catalysis : efficient and accurate approaches for studying enzymatic systems." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46389.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2009.<br>Includes bibliographical references (p. 211-221).<br>(cont.) We apply our approach to several paradigmatic systems: spin state splittings and structural properties of Fe2 and other small molecules as well as the addition-elimination reactions of hydrogen and methane on FeO+ to form water and methanol, respectively. We find that errors from
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16

Korzyński, Maciej Damian. "Functionalization of metal-organic frameworks with early transition metals : from fundamental studies to catalytic applications." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/121781.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 191-215).<br>Metal-organic frameworks (MOFs) have established themselves as some of the most versatile materials available, with applications ranging from gas sorption to separation to sensing to catalysis. With a large abundance of structural motifs published to date, research efforts have shifted towards further framework elaboration via post-synthetic modification (PSM), a method to alter the chemical structure of preform
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17

Thu, Hung-yat. "Catalytic C-H bond functionalization reactions catalyzed by rhodium(III) porphyrin, palladium(II) and platinum(II) acetate complexes." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B38027872.

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18

Ceylan, Yavuz Selim. "Exploration of Transition Metal-Containing Catalytic Cycles via Computational Methods." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1505287/.

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Styrene production by a (FlDAB)PdII(TFA)(η2-C2H4) complex was modeled using density functional theory (DFT). Benzene C-H activation by this complex was studied via five mechanisms: oxidative addition/reductive elimination, sigma-bond metathesis, concerted metalation deprotonation (CMD), CMD activation of ethylene, and benzene substitution of ethylene followed by CMD of the ligated benzene. Calculations provided evidence that conversion of benzene and ethylene to styrene was initiated by the fifth pathway, arylation via CMD of coordinated benzene, followed by ethylene insertion into the Ru-Ph b
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19

Güell, Serra Mireia. "Theoretical studies of systems of biochemical interest containing Fe and Cu transition metals." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/7941.

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La presència de la química teòrica i computacional està augmentant en quasi tots els camps de la recerca en química. Els càlculs teòrics poden ajudar a entendre millor l'estructura, les propietats i la reactivitat de compostos metàl·lics d'àrees tan diferents com la química inorgànica, organometàl·lica i bioinorgànica. No obstant això, és imprescindible utilitzar la metodologia adequada per obtenir resultats teòrics fiables. Els estudis d'aquesta tesi es poden dividir en dos grups diferents. El primer grup inclou l'estudi teòric del mecanisme de reacció de diversos sistemes que contenen coure
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20

Gade, Lutz Hans. "The systematic build up and modification of high nuclearity osmium and osmium-mercury clusters and their role as model systems for small metal particles." Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/271913.

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21

Thu, Hung-yat, and 杜鴻溢. "Catalytic C-H bond functionalization reactions catalyzed by rhodium(III) porphyrin, palladium(II) and platinum(II) acetatecomplexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B38798268.

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22

Başaran, Duygu [Verfasser], Notker [Akademischer Betreuer] Rösch, and Klaus [Akademischer Betreuer] Köhler. "Theoretical Studies of Catalytic Transformations of Hydrocarbons over Transition Metals / Duygu Basaran. Gutachter: Notker Rösch ; Klaus Köhler. Betreuer: Notker Rösch." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1038787173/34.

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23

Fernandez, Cristina Carcedo. "Chiral diphosphine ligands derived from 1, 4:3, 6-dianhydro-d-mannitol : synthesis, co-ordination to transition metals and catalytic applications." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/54551/.

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The synthesis of a new chiral diphosphine, l,4:3,6-dianhydro-2,5-bis(diphenylphosphino)-D-mannitol (ddppm) is reported, ddppm is derived from the commercially available C2-symmetric l,4:3,6-dianhydro-D-mannitol (Isomannide). This new ligand exhibits a bend butterfly-like geometry with the two-phosphine groups on the concave side. PPh, I PPh, H H ddppm The chelating ability of ddppm is demonstrated with the synthesis of several complexes with transition metals such as Cu, Pd, Pt, Rh, Ru and Ir. Some of these complexes have been successfully crystallized and tested in different catalytic reactio
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24

Lilova, Kristina Ilcheva. "Thermochemical and topological studies of systems constitued by transition metals (Co, Ni) with Sn and Bi." Nancy 1, 2007. http://www.theses.fr/2007NAN10016.

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Ce travail avait pour but de déterminer des enthalpies de formation et des équilibres de phases dans des alliages susceptibles de remplacer la brasure au plomb, à base Bi-Sn avec des additions de Co ou Ni (souvent utilisés dans les substrats en électronique). Les expériences ont été menées dans deux calorimètres : Calvet et Gachon. D’autres techniques : DSC, ATD, EMPA, DRX ont été mises à contribution. Le système Co-Sn a été modélisé par la méthode CALPHAD. CoSn : La calorimétrie de réaction directe a donné les enthalpies de formation de Co3Sn2, CoSn, CoSn2 and CoSn3 à 1287, 1033, 629 et 605 K
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25

Naftel, Steven. "Interactions of transition metals with silicon(100), the Ni-Si, Co-Si and Au/Si(100) systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0008/NQ42546.pdf.

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26

Nguyen, Duong Thuy. "Self-assembly Polymeric Nanoparticles Composed of Polymers Crosslinked with Transition Metals for Use in Drug Delivery." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc822738/.

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A major drawback of chemotherapy is the lack of selectively leading to damage in healthy tissue, which results in severe acute side effects to cancer patients. The use of nanoparticles as a drug delivery system has emerged as novel strategy to overcome the barriers of immunogenic response, controlled release of therapeutic, and targeting the toxicity only to cancerous cells. In this study, polymeric nanoparticles composed of transition metals and particles derived from natural biopolymers have been generated via self-assembly. For example, nanoparticles composed of cobalt crosslinked with a
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27

Jones, Simon C. "Metal-metal coupling in bi- and multimetallic systems : organometallic pentalene and group 14-bridged cyclopentadienyl complexes of transition metals." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270635.

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28

Afewerki, Samson. "Development of catalytic enantioselective C-C bond-forming and cascade transformations by merging homogeneous or heterogeneous transition metal catalysis with asymmetric aminocatalysis." Doctoral thesis, Mittuniversitetet, Avdelningen för naturvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-23605.

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Chiral molecules play a central role in our daily life and in nature, for instance the different enantiomers or diastereomers of a chiral molecule may show completely different biological activity. For this reason, it is a vital goal for synthetic chemists to design selective and efficient methodologies that allow the synthesis of the desired enantiomer. In this context, it is highly important that the concept of green chemistry is considered while designing new approaches that eventually will provide more environmental and sustainable chemical synthesis.The aim of this thesis is to develop th
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29

Millan, Cabrera Reisel. "Computational study of heterogeneous catalytic systems. Kinetic and structural insights from Density Functional Theory." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/161934.

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[ES] En este trabajo estudiamos dos reacciones catalíticas relevantes para la industria y la localización del anión fluoruro en la zeolita RTH, sintetizada en medio fluoruro. El capítulo 3 es el primer capítulo de resultados, donde se estudia la reducción quimioselectiva del nitroestireno en las superficies Ni(111), Co(111), Cu(111) y Pd(111). El mecanismo generalmente aceptado de esta reacción está basado en el esquema propuesto por Haber en 1898, en el que la reacción puede transcurrir por dos rutas, la directa y la de condensación. En este capítulo exploramos ambas rutas, y observamos que l
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30

Papadopoulos, Konstantinos. "Investigation of magnetic order in nickel-5d transition metal systems." Thesis, Uppsala universitet, Molekyl- och kondenserade materiens fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-383009.

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Double perovskite materials exhibit alterations in magnetic order through manipulation oftheir crystal structure. Certain ultra thin metallic bilayers can create an exotic magnetic stateof confined spin textures called skyrmions. In both cases, new atomic arrangements leadto new electrical and magnetic properties. The following work comprises two studies, bothof which examine the magnetic properties of transition metals in either powder or thin filmsamples. The first part is dedicated to a series of muon spin rotation and relaxation (muSR)experiments on a LaSrNiReO6, double perovskite, powder
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31

Lien, Wan-Fu. "Separation of Transition Metal Ions by HPLC, Using UV-VIS Detection." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc501145/.

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HPLC has been used and can quickly determine several ions simultaneously. The method of determination described for transition metals [Cr(III), Fe(III), Ni(II), Co(II), Cu(II), Zn(II), Cd(II), Mn(II)] and [Ca(II), Pb(II)] using HPLC with UV-VIS detection is better than the PAR complexation method commonly used. The effects of both eluent pH and detector wavelength were investigated. Results from using different pHs and wavelengths, optional analytical conditions for the separation of [Ni(II), Co(II), Cu(II)], [Cr(III), Fe(III), Ca(II), Ni(II), Cu(II)], and [Ca(II), Zn(II), Pb(II)] in one injec
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32

Peterson, Charles Campbell. "Accurate Energetics Across the Periodic Table Via Quantum Chemistry." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc822822/.

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Greater understanding and accurate predictions of structural, thermochemical, and spectroscopic properties of chemical compounds is critical for the advancements of not only basic science, but also in applications needed for the growth and health of the U.S. economy. This dissertation includes new ab initio composite approaches to predict accurate energetics of lanthanide-containing compounds including relativistic effects, and optimization of parameters for semi-empirical methods for transition metals. Studies of properties and energetics of chemical compounds through various computational me
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33

Rêgo, de Vasconcelos Bruna. "Phosphates-based catalysts for synthetic gas (syngas) production using CO2 and CH4." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2016. http://www.theses.fr/2016EMAC0004/document.

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Parmi les produits issus de la biomasse ou de la transformation des déchets organiques, le CO2 et le CH4 sont des intermédiaires chimiques importants qui ont de forts impacts environnementaux. En effet, ils sont les principaux gaz responsables de l'effet de serre et leur atténuation est un enjeu majeur. Une voie intéressante pour la valorisation de ces gaz est le reformage à sec du méthane (DRM), qui convertit le CO2 et le CH4 en gaz de synthèse (mélange d'hydrogène et de monoxyde de carbone). Ce mélange peut être utilisé pour plusieurs applications telles que la production de méthanol, d'éthe
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34

Boyko, Marina [Verfasser], Thomas F. [Akademischer Betreuer] Fässler, Thomas F. [Gutachter] Fässler, and Tom [Gutachter] Nilges. "Polar Intermetallics at the Border Between Hume-Rothery and Zintl Phases : Investigations in the Systems Alkali Metal – Tin with Late Transition and p-Block Metals / Marina Boyko ; Gutachter: Thomas F. Fässler, Tom Nilges ; Betreuer: Thomas F. Fässler." München : Universitätsbibliothek der TU München, 2019. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20190930-1516421-1-7.

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35

Caturello, Naidel Antônio Moreira dos Santos. "Estudo das propriedades de agregados supramoleculares contendo metais de transição." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-18022016-100847/.

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O estudo das reações de agregação em sistemas automontados é de grande interesse científico pela grande variedade de aplicações que tais colunas podem desempenhar. O presente trabalho teve como objetivo investigar as propriedades gerais de colunas supramoleculares formadas por complexos de coordenação que contêm platina, paládio e zinco. Esta investigação foi feita através do método semiempírico PM7. Os agregados supramoleculares investigados tiveram suas geometrias otimizadas e foram submetidos a cálculos termoquímicos. Pôde-se investigar as influências do metal e dos ligantes nos mecanismos
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36

Enquist, Per-Anders. "Novel Metal-Mediated Organic Transformations : Focusing on Microwave Acceleration and the Oxidative Heck Reaction." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7117.

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Sanja, Panić. "Fizičko-hemijske i katalitičke osobine ugljeničnih nanocevi sintetisanih metodom katalitičke hemijske depozicije iz gasne faze – korelacija sa osobinama primenjenih katalizatora na bazi prelaznih metala (Fe, Co, Ni)." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=89673&source=NDLTD&language=en.

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Postojanje ugljeničnih nanocevi (UNC), kao jedne od brojnih alotropskih modifikacija ugljenika, zabeleženo je jo&scaron; pre vi&scaron;e od pola veka. Međutim, do prave eksplozijeinteresovanja za ovu vrstu nanomaterijala je do&scaron;lo tek 1991. godine kada ih je &quot;ponovo&quot; otkrio japanski naučnik S. Iijima. Od tada, zbog svojih izuzetnih fizičko-hemijskih osobina, UNC počinju da privlače pažnju naučne javnosti i spajaju istraživače iz različitih oblasti sa zajedničkim imeniteljem - nanotehnologija. Otkriće UNC je u znatnoj meri omogućilo razvoj visoke tehnologije u oblastima kao &sca
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38

Kang, Myeongsoon. "Investigation of late transition metal based catalytic systems for polymerication of polar vinyl monomers." 2004. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-600/index.html.

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39

Xaba, Bongani Michael. "Separation and recovery of selected transition-metal catalyst systems using membrane processes." Thesis, 2010. http://hdl.handle.net/10352/104.

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Thesis (M. Tech. Chemistry, Dept. of Chemistry, Faculty of Applied and Computer Sciences)--Vaal University of Technology, 2010.<br>Membrane separation processes offer a promising alternative to energy-intensive separation processes such as distillation and solvent extraction. NF and RO are among the most investigated membrane processes with a potential use in the chemical industry. Carbon-carbon coupling reactions feature in the top ten most used reactions in the chemical industry. These reactions often use homogeneous palladium, nickel and other precious catalysts which are often difficu
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40

Kandoi, Shampa. "Catalytic hydrogen production and chemistry on transition metals." 2006. http://www.library.wisc.edu/databases/connect/dissertations.html.

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41

Li, Baichang. "Catalytic and Electronic Activity of Transition Metal Dichalcogenides Heterostructures." Thesis, 2021. https://doi.org/10.7916/d8-4yrb-rs15.

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The synthesis of transition metal dichalcogenides (TMDs) are crucial to realization of their real-world applications in electronic, optoelectronic and chemical devices. However, the fabrication yield in terms of material quality, crystal size, defect density are poorly controlled. In this work, by employing the up-to-date stack-and-transfer and nano fabrication techniques, synthetic TMDs that obtained from different growth methods with various crystal qualities were studied. In most of the cases, better crystals with lower defect densities and larger crystal domain sizes are preferred. Self
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42

Tseng, Nai-Wen. "Transition Metal-catalyzed Carbon-carbon/Carbon-heteroatom Bond Formation Reactions Utilizing Strained Ring Systems." Thesis, 2009. http://hdl.handle.net/1807/19101.

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This thesis focuses on the development of carbon-carbon/carbon-heteroatom bond forming reactions using strained ring systems under transition metal catalysis. The first chapter describes the use of bifunctional organoboron reagents with a rhodium catalyst to synthesize carbocycles through a cascade sequence. The reaction of norbornene derivatives gives vinylcyclopropane and cyclopentene products in moderate to good yield. The mechanistic proposal and insights into the reaction mechanism are presented. Preliminary results from studies toward an enantioselective sequential addition/cyclization p
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43

White, Rosemary Elaine. "Trimethylsilylated allyl complexes of groups I-V formation, structure, and catalytic reactions /." Diss., 2006. http://etd.library.vanderbilt.edu/ETD-db/available/etd-08252006-151050/.

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44

"Theoretical studies of systems of biochemical interest containing Fe and Cu transition metals." Universitat de Girona, 2009. http://www.tesisenxarxa.net/TDX-0112110-135752/.

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45

O, Wylie Wing Nien. "Late Transition Metal Complexes Bearing Functionalized N-Heterocyclic Carbenes and the Catalytic Hydrogenation of Polar Double Bonds." Thesis, 2012. http://hdl.handle.net/1807/36294.

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Late transition metal complexes of silver(I), rhodium(I), ruthenium(II), palladium(II) and platinum(II) containing a nitrile-functionalized N-heterocyclic carbene ligand (C-CN) were prepared. The nitrile group on the C–CN ligand was shown to undergo hydrolysis under basic conditions, leading to a silver(I) carbene complex with a primary-amido functional group, and a trimetallic complex of palladium(II) with a partially hydrolyzed C–N–N–C donor ligand. The reduction of a nitrile-functionalized imidazolium salt in the presence of nickel(II) chloride under mil
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46

Edelberg, Drew Adam. "Systems of Transition Metal Dichalcogenides : Controlling Applied Strain and Defect Density With Direct Impact on Material Properties." Thesis, 2019. https://doi.org/10.7916/d8-1426-m546.

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Transition metal dichalcogenides (TMDs) are crystalline layered materials that have significantly impacted the field of condensed matter physics. These materials were the first exfoliatable semiconductors to be discovered after the advent of graphene. The focus of this dissertation is utilizing multiple imaging and characterization techniques to improve and understand the impact of strain and lattice defects in these materials. These inclusions to the lattice, alter the semiconducting performance in controllable ways. A comprehensive study using scanning tunneling spectroscopy (STM), spectros
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47

Pal, Banabir. "Electronic and Magnetic Structures of Some Selected Strongly Correlated Systems." Thesis, 2016. http://hdl.handle.net/2005/2970.

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Transition metal oxides and chalcogenides are an ideal platform for demonstrating and investigating many interesting electronic phases of matter. These phases emerge as a result of collective many body interactions among the electrons. The omnipresent electron, depending on its interaction with other electrons and with the underlying lattice, can generate diverse phases of matter with exotic physical properties. The ultimate objective of Materials Science is to provide a complete microscopic understanding of these myriad electronic phases of matter. A proper understanding of the collective qua
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