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Статті в журналах з теми "Cavitandi"
Shi, Qixun, Matthew P. Mower, Donna G. Blackmond, and Julius Rebek. "Water-soluble cavitands promote hydrolyses of long-chain diesters." Proceedings of the National Academy of Sciences 113, no. 33 (August 1, 2016): 9199–203. http://dx.doi.org/10.1073/pnas.1610006113.
Повний текст джерелаTurunen, Lotta, Fangfang Pan, Ngong Kodiah Beyeh, Mario Cetina, John F. Trant, Robin H. A. Ras, and Kari Rissanen. "Halogen-bonded solvates of tetrahaloethynyl cavitands." CrystEngComm 19, no. 35 (2017): 5223–29. http://dx.doi.org/10.1039/c7ce01118k.
Повний текст джерелаBrekalo, Deliz, Kane, Friščić, and Holman. "Exploring the Scope of Macrocyclic “Shoe-last” Templates in the Mechanochemical Synthesis of RHO Topology Zeolitic Imidazolate Frameworks (ZIFs)." Molecules 25, no. 3 (February 1, 2020): 633. http://dx.doi.org/10.3390/molecules25030633.
Повний текст джерелаPedrini, Alessandro, Federico Bertani, and Enrico Dalcanale. "Fluorinated Tetraphosphonate Cavitands." Molecules 23, no. 10 (October 17, 2018): 2670. http://dx.doi.org/10.3390/molecules23102670.
Повний текст джерелаTurunen, L., N. K. Beyeh, F. Pan, A. Valkonen, and K. Rissanen. "Tetraiodoethynyl resorcinarene cavitands as multivalent halogen bond donors." Chem. Commun. 50, no. 100 (2014): 15920–23. http://dx.doi.org/10.1039/c4cc07771g.
Повний текст джерелаDalcanale, E., M. Torelli, I. Domenichelli, A. Pedrini, F. Guagnini, R. Pinalli, F. Terenziani, F. Artoni, and R. Brighenti. "pH-Driven Conformational Switching of Quinoxaline Cavitands in Polymer Matrices." Synlett 29, no. 19 (July 24, 2018): 2503–8. http://dx.doi.org/10.1055/s-0037-1610219.
Повний текст джерелаPinalli, Roberta, та Chiara Massera. "Nitrosonium complexation by the tetraphosphonate cavitand 5,11,17,23-tetramethyl-6,10:12,16:18,22:24,4-tetrakis(phenylphosphonato-κ2O,O)resorcin(4)arene". Acta Crystallographica Section E Crystallographic Communications 73, № 12 (3 листопада 2017): 1801–5. http://dx.doi.org/10.1107/s2056989017015857.
Повний текст джерелаRahman, Faiz-Ur, Yong-sheng Li, Ioannis D. Petsalakis, Giannoula Theodorakopoulos, Julius Rebek, and Yang Yu. "Recognition with metallo cavitands." Proceedings of the National Academy of Sciences 116, no. 36 (August 19, 2019): 17648–53. http://dx.doi.org/10.1073/pnas.1909154116.
Повний текст джерелаBiavardi, Elisa, and Chiara Massera. "Crystal structure of a host–guest complex between mephedrone hydrochloride and a tetraphosphonate cavitand." Acta Crystallographica Section E Crystallographic Communications 75, no. 2 (January 29, 2019): 277–83. http://dx.doi.org/10.1107/s2056989019001464.
Повний текст джерелаPedrini, Alessandro. "Host–guest supramolecular interactions between a resorcinarene-based cavitand bearing a –COOH moiety and acetic acid." Acta Crystallographica Section E Crystallographic Communications 75, no. 3 (February 22, 2019): 397–401. http://dx.doi.org/10.1107/s2056989019002512.
Повний текст джерелаДисертації з теми "Cavitandi"
Trusso, Sfrazzetto Giuseppe. "Progettazione e sintesi di nuovi cavitandi macrociclici." Thesis, Università degli Studi di Catania, 2011. http://hdl.handle.net/10761/122.
Повний текст джерелаQuinoxaline cavitands are synthetic molecular receptors with an hydrophobic cavity; these compounds are able to recognize several guests via hydrophobic interactions. Many examples of achiral recognition using these cavitands are reported in literature; at the best of our knowledge there are few reports about efficient chiral recognition. In this work new chiral quinoxaline based cavitands for enantiomeric recognition of functionalized aminoacids were synthesized. We introduced a chiral salen unit in the cavitand scaffold to allow the coordination of a metal cation and in particular an uranyl site, that permits the realization of an heteroditopic receptor, able to bind chiral ion pair of aminoacid salts. After this work we synthesized as a heteroditopic model a chiral uranyl salen complex containing two pyrenil arms, in order to elucidate the recognition mechanism of the hosts. To obtain new chiral materials silica based, we designed a new chiral cavitand functionalized with an aliphatic chain double bond terminated. This new surface was characterized by XPS, SEM and IR. Moreover we synthesized a cavitand with a fullerene unit, allow a new photosensitizer that generates singlet oxygen. This compound is able to perform an efficient DNA cleavage and should be applied in photodynamic therapy.
De, Zorzi Rita. "Structural studies on molecular recognition in protein complexes and supramolecular systems." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3082.
Повний текст джерелаIl riconoscimento molecolare tra due o più specie chimiche mediante interazioni non covalenti è il principale argomento di studio della chimica supramolecolare. Individuare i fini meccanismi di complementarietà che presiedono il processo di associazione molecolare è di fondamentale importanza sia per la comprensione di come funzionano i sistemi biologici naturali sia per lo sviluppo di nuovi sistemi supramolecolari artificiali. Nel presente lavoro di tesi, l’analisi delle interazioni che governano il riconoscimento molecolare sia in sistemi supramolecolari artificiali che in complessi proteici naturali è stata condotta attraverso la tecnica di diffrazione di raggi X da cristallo singolo, che consente la precisa identificazione delle interazioni coinvolte e dei gruppi funzionali responsabili del riconoscimento molecolare. In particolare, sono state analizzate le differenze tra due forme cristalline del citocromo c da Cuore di Cavallo, ottenute rispettivamente in ambiente ossidante e riducente in presenza di ioni nitrato. Lo ione nitrato è stato utilizzato in questo lavoro biocristallografico come sonda ionica per analizzare le variazioni della superficie elettrostatica connesse con il processo ossidoriduttivo del citocromo e per individuare i principali passaggi del meccanismo di riconoscimento molecolare in cui è coinvolto questo trasportatore di elettroni. Nell’ambito dello studio di sistemi in grado di mimare i sistemi biologici, sono stati analizzati anche complessi supramolecolari artificiali contenenti porfirine. Un nuovo versatile materiale nanoporoso è stato ottenuto attraverso utilizzo di interazioni non covalenti sinergiche tra calixareni e porfirine. Questa struttura supramolecolare che ricorda le zeoliti è stata successivamente funzionalizzata attraverso la diffusione di ioni metallici nei canali della struttura. Il materiale nanoporoso così ottenuto, contenente un pigmento porfirinico assieme ad uno ione metallico, è molto promettente per il successivo sviluppo di sistemi artificiali che coniugano la capacità di raccogliere la radiazione elettromagnetica nel campo del visibile con centri catalitici in grado di immagazzinare tale energia in legami chimici. In questo lavoro di tesi, un complesso, costituito da un nucleo formato da 4 ioni rutenio legati da ponti ossigeno, che ha dimostrato elevate capacità catalitiche nella reazione di produzione di ossigeno a partire dall’acqua in presenza di cerio (IV), è stato caratterizzato strutturalmente. Lo studio cristallografico ha permesso di ottenere dettagli strutturali importanti per la comprensione del meccanismo di reazione di tale complesso. Sensori che si avvalgono delle caratteristiche di reversibilità dell’interazione e di specificità del substrato tipiche della chimica supramolecolare possono essere ottenuti mediante la progettazione razionale di opportuni recettori molecolari. In questa tesi, cristalli isomorfi di un cavitando tetrafosfonato sono stati ottenuti in presenza di diversi alcoli guest, permettendo il confronto delle interazioni che determinano la formazione del complesso. Successivamente, sono stati portati a termine esperimenti di cocristallizzazione in presenza di coppie alcoliche, al fine di studiare la competizione tra queste specie per il sito del cavitando. Molecole a cavità che presentano funzionalità di host possono essere utilizzate anche nella progettazione di polimeri supramolecolari. Questo tipo di sistemi è particolarmente interessante per la possibilità di attivare o disattivare la polimerizzazione in risposta ad uno stimolo esterno. In questa tesi, un approccio di questo tipo è stato applicato alla sintesi di un omopolimero e di un eteropolimero.
Molecular recognition of two or more molecules through non covalent interactions is the field of supramolecular chemistry. The evaluation of the subtle mechanisms of complementarity inducing the molecular association has a fundamental importance in order to both elucidate biological processes and develop new artificial supramolecular systems. In the present thesis, analyses on various, artificial and natural, supramolecular systems, have been carried out using X-ray diffractions techniques on single crystals, that allow the precise determination of interaction geometries of the functional groups involved. In particular, structural differences between two crystal forms of Horse Heart cytochrome c, obtained in presence of nitrate ions, in an oxidizing and in a reducing environment, respectively, have been analysed. In this biocrystallographic work, nitrate ions have been used as ionic probes to analyse variations on the electrostatic surface due to the oxidoreductive processes of cytochrome and to identify the main steps of the molecular recognition mechanism, involving this electron transport protein. In order to develop systems able to mimicking biological processes, supramolecular complexes containing porphyrins have been analysed. A highly flexible nanoporous material has been obtained by synergistic non-covalent interactions of calixarene and porphyrin building blocks. This supramolecular zeolite-like structure has been easily functionalized by diffusion and coordination of metal ions in the large void channels of the crystals. This new nanoporous material, containing a porphyrinic dye together with a metal ion, is very promising for the development of artificial systems combining visible light harvesting properties and catalytic centres, able to store energy in chemical bonds. In this thesis, a complex constituted by a core of four ruthenium atoms bound through oxygen bridges, that demonstrated catalytic properties in oxygen evolving reactions from water oxidation in presence of Ce (IV), has been characterized through X-ray diffraction. The crystallographic analysis has allowed the determination of important structural details in order to understand the reaction mechanism of this complex. Sensing systems, that exploit the characteristics of reversibility of interactions and specificity of the substrate, typical of supramolecular chemistry, can be achieved with a rational design of suitable molecular receptors. In this thesis, isomorphic crystals of a tetraphosphonato cavitand have been obtained in presence of different alcoholic guests, allowing the comparison of interactions responsible for the complex formation. Afterwards, cocrystallizzation experiments in presence of two alcoholic species have been carried out in order to investigate the competition of these molecules for the cavitand site. Hollow molecules with host functionalities can also be exploited in the design of supramolecular polymers. These systems have attracted particular interest for the possibility of switch on/off the polymerisation after an external stimuli. In this thesis, a supramolecular approach has been applied in order to synthesize a homopolymer and a heteropolymer.
1981
Martínez, Rodríguez Luis. "Molecule and catalyst design for recognition and activation of small molecules." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/398693.
Повний текст джерелаEngeldinger, Eric. "Cyclodextrin-derived metallo-cavitands." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. https://publication-theses.unistra.fr/public/theses_doctorat/2003/ENGELDINGER_Eric_2003.pdf.
Повний текст джерелаThe present thesis deals with the multi-step synthesis of a series of ligands based on an a-cyclodextrin platform as well as the study of their coordination and catalytic properties. Two of the cyclodextrins, L1 and L2, are functionalised with two phosphite sidearms, -C6H4-o-OP(OPh)2, tethered to the A,D and A,C positions, respectively. Four other CDs bear PPh2 entities which have been directly anchored to the primary face: L3 (AD-disubstitution), L4 (AC-disubstitution), L5 (ACE-trisubstitution) and L8 (monosubstitution). Finally, two sterically hindered monophosphines, L6 and L7, have been obtained by bridging units AB and AC, respectively, with the PPh2- dianion. Despite their length, both diphosphites L1 and L2 readily form cationic chelate complexes with [Rh(NBD)(THF)2]BF4, in which the metal is part of a large macrocyle (29 and 24 members, respectively). The rhodium complex obtained with L2 catalyses the asymmetric hydrogenation of dimethylitaconate with a remarkable enantiomeric excess (83. 6%). The C2-symmetrical diphosphine L3 forms a (P,P,OMe) chelate complex with Ag+ which displays hemilabile behaviour, the four primary MeO groups alternatively binding the metal centre. Addition of various nitriles affords complexes in which the coordinated nitrile(s) is (are) always trapped inside the cavity. The latter highly contributes to the stability of the [AgP2(CH3CN)2]+ complex, a type of complex that had so far never been detected. Another unexpected property was uncovered when reacting diphosphines L3 and L4 with chloro complexes, LnMCl, which gave rise systematically to trans chelates, in which the M-Cl fragment is directed towards the cavity interior. The particular orientation of the M-Cl bond results from weak interactions between the coordinated chloride and two inner-cavity H-5 protons. Such interactions inside a CD are unprecedented. In both monophosphines, L6 and L7, synthesised by diastereospecific capping, the phosphorus lone pair is pointing towards the CD axis. This feature allows formation of self-inclusion complexes
Berghaus, Carsten. "Tetrapeptido-Methylendioxyresorc[4]arene chirale Cavitanden /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968375375.
Повний текст джерелаEl, Moll Hani. "Synthèses et propriétés catalytiques de cavitands résorcinaréniques." Strasbourg, 2009. http://www.theses.fr/2009STRA6118.
Повний текст джерелаFranc, Jean-Pierre. "Etude physique d'écoulements cavitants." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37598038p.
Повний текст джерелаScott, Michael P. "Synthesis and Properties of Conformationally Restricted Cavitand Systems." Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/154341.
Повний текст джерелаDelannoy, Yves. "Modélisation d'écoulements instationnaires et cavitants." Grenoble INPG, 1989. http://www.theses.fr/1989INPG0070.
Повний текст джерелаMarie-Magdeleine, Artem. "Caractérisation des fonctions de transfert d'organes hydrauliques en régimes cavitant et non-cavitant." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-01011968.
Повний текст джерелаЧастини книг з теми "Cavitandi"
Korotcenkov, Ghenadii. "Cavitands." In Integrated Analytical Systems, 147–53. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7388-6_9.
Повний текст джерелаWishard, Anthony, and Bruce C. Gibb. "A Chronology of Cavitands." In Calixarenes and Beyond, 195–234. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31867-7_9.
Повний текст джерелаBailey, P. D., S. R. Carter, D. G. W. Clarke, and G. A. Crofts. "Polycyclic peptides as novel cavitands." In Peptides 1990, 225–26. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3034-9_94.
Повний текст джерелаTancini, Francesca, and Enrico Dalcanale. "Polymerization with Ditopic Cavitand Monomers." In Supramolecular Polymer Chemistry, 71–93. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527639786.ch4.
Повний текст джерелаAzov, Vladimir A., and François Diederich. "Switching Processes in Cavitands, Containers and Capsules." In Molecular Switches, 257–300. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527634408.ch8.
Повний текст джерелаDelangle, Pascale, Jean-Christophe Mulatier, and Jean-Pierre Dutasta. "Phosphorylated Cavitands: Encapsulation of Hard Cationic Guests." In Molecular Recognition and Inclusion, 321–24. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5288-4_49.
Повний текст джерелаTonezzer, M., E. Menin, S. Carturan, G. Maggioni, A. Quaranta, R. Pinalli, and E. Dalcanale. "Luminescent Cavitands as Novel Optically Active Materials." In Lecture Notes in Electrical Engineering, 411–15. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-3860-1_73.
Повний текст джерелаBailey, P. D., S. R. Carter, D. G. W. Clarke, G. A. Crofts, and J. H. M. Tyszka. "Polycyclic peptides: A new type of cavitand." In Peptides, 373–75. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2264-1_138.
Повний текст джерелаBorsato, Giuseppe, Julius Rebek, and Alessandro Scarso. "Capsules and Cavitands: Synthetic Catalysts of Nanometric Dimension." In Selective Nanocatalysts and Nanoscience, 105–68. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527635689.ch4.
Повний текст джерелаTimmerman, Peter, Harold Boerrigter, Willem Verboom, Gerrit J. Van Hummel, Sybolt Harkema, and David N. Reinhoudt. "Proximally Functionalized Cavitands and Synthesis of a Flexible Hemicarcerand." In Calixarenes 50th Anniversary: Commemorative Issue, 167–91. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0267-4_11.
Повний текст джерелаТези доповідей конференцій з теми "Cavitandi"
Bardet, A., F. Parret, M. Guillemot, S. Besnard, P. Montméat, C. Barthet, P. Prené, Matteo Pardo, and Giorgio Sberveglieri. "Cavitands thin films as sensitive coating for explosives sensors." In OLFACTION AND ELECTRONIC NOSE: Proceedings of the 13th International Symposium on Olfaction and Electronic Nose. AIP, 2009. http://dx.doi.org/10.1063/1.3156569.
Повний текст джерелаAltamore, Timothy M., Elizabeth S. Barrett, Peter J. Duggan, Peter J. Nichols, Michael S. Sherburn, and Melanie L. Szydzik. "HIGHLY SELECTIVE FRUCTOSE TRANSPORT MEDIATED BY CAVITAND BORONIC ACIDS." In XXIst International Carbohydrate Symposium 2002. TheScientificWorld Ltd, 2002. http://dx.doi.org/10.1100/tsw.2002.559.
Повний текст джерелаSgreccia, E., A. Macagnano, E. Dalcanale, C. Di Natale, and R. Paolesse. "A study of mass effect in a cavitand supramolecular sensor." In Proceedings of the 11th Italian Conference. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812793393_0004.
Повний текст джерелаGilberto Dalfre Filho, Jose, and Thais Vieira Omido. "EFICIÊNCIA ÓTIMA DO EQUIPAMENTO TIPO JATO CAVITANTE COM MÚLTIPLOS JATOS." In XXIII Congresso de Iniciação Científica da Unicamp. Campinas - SP, Brazil: Galoá, 2015. http://dx.doi.org/10.19146/pibic-2015-37870.
Повний текст джерелаZampolli, S., I. Elmi, G. C. Cardinali, M. Severi, E. Dalcanale, and P. Betti. "Use of Cavitands as Selective Adsorbing Materials in GC-like Air Quality Monitoring Microsystems." In Proceedings of the 11th Italian Conference. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812793393_0044.
Повний текст джерелаDomingo, C., E. del Puerto, S. Sánchez-Cortés, J. V. García-Ramos, P. M. Champion, and L. D. Ziegler. "SERS of Insoluble Synthetic Organic Pigments Employing Calixarenes as Dispersive Cavitands: Application to Quinacridone Quinone." In XXII INTERNATIONAL CONFERENCE ON RAMAN SPECTROSCOPY. AIP, 2010. http://dx.doi.org/10.1063/1.3482430.
Повний текст джерелаFERRARI, M., V. FERRARI, D. MARIOLI, A. TARONI, M. SUMAN, and E. DALCANALE. "COMPARATIVE EXPERIMENTS ON CAVITAND-COATED PZT RESONANT PIEZO-LAYER AND QCM SENSORS EXPOSED TO ORGANIC VAPORS." In Proceedings of the 8th Italian Conference. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702944_0013.
Повний текст джерелаGilberto Dalfre Filho, Jose, and Heitor Da Costa Moreira. "Avaliação de desgaste de materiais por cavitação com o equipamento tipo jato cavitante." In XXIII Congresso de Iniciação Científica da Unicamp. Campinas - SP, Brazil: Galoá, 2015. http://dx.doi.org/10.19146/pibic-2015-37348.
Повний текст джерелаGilberto Dalfre Filho, Jose, and Huang Taosheng. "O equipamento tipo jato cavitante e a sua eficiência por análises de imagens." In XXIII Congresso de Iniciação Científica da Unicamp. Campinas - SP, Brazil: Galoá, 2015. http://dx.doi.org/10.19146/pibic-2015-37365.
Повний текст джерелаPEREIRA, F. F., L. D. C. PINEDA, and A. C. HABERT. "NOVAS MEMBRANAS POLIMÉRICAS DE MATRIZ MISTA CONTENDO CAVITANDOS ORGÂNICOS E NANOPARTÍCULAS DE CARBONO PARA SEPARAÇÃO DE GASES." In Congresso Brasileiro de Engenharia Química em Iniciação Científica. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/chemeng-cobeqic2017-449.
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