Dissertations / Theses on the topic 'Supramolecular organometallic chemistry'
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Meng, Wenjing. "Metal-organic polyhedra : subcomponent self-assembly, structural properties, host-guest behavior and system chemistry." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610719.
Full textCoombes, Matthew. "A Comparative study of two copper(II) based metal-organic frameworks : Cu2¼(OH)½B4C•8H2O and Cu2Na(OH)B4C•7H2O." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1016245.
Full textFaustino, Brissos Rosa Maria. "Coordination, organometallic and supramolecular chemistry approaches to the design of metal-based cytotoxic agents." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/544129.
Full textEl descobriment que cisplatí és un fàrmac molt útil en quimioteràpia ha encoratjat el desenvolupament de fàrmacs antitumorals basats en metalls. El projecte de recerca d’aquesta Tesi Doctoral inclou tres aproximacions diferents pel disseny de nous compostos citotòxics basats en metalls. Així doncs, tant la química de coordinació com l’organometàl·lica i supramolecular s’han emprat per desenvolupar tres famílies de compostos amb propietats biològiques molt prometedores. S’han preparat complexos de Cu(II) amb imines (bases de Shiff) de diverses nuclearitats. S’ha trobat que els complexos interaccionen fortament amb l’ADN sense escindir-lo i tenen citotoxicitats elevades en diverses línies de cèl·lules canceroses de ratolí i també humanes. S’han estudiat també compostos organometàl·lics de Ru(II) amb fosfines terciàries PR3 i s’ha trobat que són molt citotòxics en un ampli espectre de línies cel·lulars canceroses humanes. A més, presententen un efecte antimetastàtic molt interessant. S’han establert relacions estructura-propietat, fet que il·lustra el gran potencial i versatilitat d’aquesta família de molècules perquè les propietats es poden modular segons el lligand fosfina unit al metall. Finalment, s’ha desenvolupat una nova família de compostos supramoleculars amb l’objectiu que interaccionin amb el solc gran de l’ADN i/o estabilitzar estructures no convencionals de l’ADN com per exemple unions triples (3WJ). Així doncs, s’ha trobat que els metal·lohelicats de Fe(III) que s’han preparat s’uneixen al solc major de l’ADN però no son capaços d’estabilitzar les unions triples 3WJ. Alguns d’aquests compostos presenten propietats citotòxiques interessants i un d’ells fins i tot indueix l’apoptosi cel·lular.
Cordes, David B., and n/a. "Supramolecular transition metal architectures." University of Otago. Chemistry Department, 2005. http://adt.otago.ac.nz./public/adt-NZDU20060705.144929.
Full textMalic, Nino 1974. "5,7,12,14-tetramethyldibenzo[b,i]-1,4,8,11-tetraazacyclotetradecine-nickel(II)ester derivatives and supramolecular complexes with ionic substrates /." Monash University, Dept. of Chemistry, 2002. http://arrow.monash.edu.au/hdl/1959.1/8331.
Full textMartínez, Agramunt Víctor. "Nickel and palladium supramolecular organometallic complexes based on NHC-ligands with polyaromatic moieties for host-guest chemistry studies." Doctoral thesis, Universitat Jaume I, 2020. http://dx.doi.org/10.6035/14104.2020.366143.
Full textThree nickel-based and one palladium-based supramolecular organometallic cages have been prepared. These four cages are based on a N-heterocyclic carbene ligand with a pyrene tag, that has been key in the subsequent applications of the cage together with the inner cavity. By pi-stacking interactions, it has been possible to encapsulate both polycylic aromatic hydrocarbons and fullerenes. The interest on first group of compounds is based on their accurate toxicity while the fullerenes are interesting due to their added value. It was possible to extract the first group of molecules from an organic media through the encapsulation inside the supramolecular cages. The host-guest adduct formed with fullerenes encapsulated inside the palladium cage was used as photocatalyst of aromatic, cyclic and acyclic substrates via singlet oxygen generation. The same palladium cage was used as receptor for multiple stacks of polyaromatic compounds.
Programa de Doctorat en Ciències
Pally, Nitin Kumar. "Synthesis and Structures of New Three-Dimensional Copper Metal-Organic Frameworks." TopSCHOLAR®, 2013. http://digitalcommons.wku.edu/theses/1295.
Full textGuo, Jianping. "Synthesis, structure and characterization of long distance electrostatic force and hydrogen bond supramolecular polymers synthesis, structure and characterization of bis[2,4-di(pyridyl)-1,3,5-triazapenta-dienato] metal complexes." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/506.
Full textLewis, William. "Chiral Heterocyclic Ligands." Thesis, University of Canterbury. Chemistry, 2007. http://hdl.handle.net/10092/1383.
Full textToyama, Marcos Makoto. "Contribuição à química supramolecular de 3,4-tetra(piridil) porfirazinas tetrarutenadas." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/46/46134/tde-05032018-171800/.
Full textIn this work, we describe the synthesis, characterization and properties of derived tetra(3,4-pyridil)porphyrazine complex containing four [Ru(bipy)2Cl]1+ groups. The electronic conjugation between the pyridinium moiety and the porphyrazine ring promote an efficient communication between the peripherical groups and central ring, which is reflected in the emission spectrum and related excitation profile. The observed behavior reveals an efficient antenna effect in the H2TPyPzTRu system. ln spite of the strong electronic coupling between the central and peripherical groups, the electronic properties of ruthenium complex were preserved, exhibiting redox potencials very close to those of free complexes. These aspects provided new perspectives of exploiting the compound strutures, particularly the oxygen singlet formation and PDT application. Another aspect focused in this investigation was the generation of new interfaces based on ion-pair formation of H2TPyPzTRu/CuTSPc, in comparison with its cationic species H2TPyPzTRu alone. By means of electrochemical impedance spectrocopy, it was shown that the conduction mecanisms in these films involve either the peripherical complex and the central porphyrazine ring.
Anderson, Amanda E. "Strategic immobilisation of catalytic metal nanoparticles in metal-organic frameworks." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/10816.
Full textBoulens, Pierre. "Sulphonamido-phosphorus nickel complexes for the selective oligomerisation of olefins - Exploring dissymmetric ligands and supramolecular strategies." Thesis, Lyon, École normale supérieure, 2014. http://www.theses.fr/2014ENSL0973/document.
Full textThe demand for short linear alpha olefins is constantly increasing and motivates the development of robust and selective catalysts. In this thesis, several libraries of phosphorus ligands with the capacity to form dissymmetric or supramolecular assemblies were synthesized. The variability observed within the aminophosphine libraries, clearly reflected by the various tautomeric equilibrium of the ligand, was also observed in the nickel complexes as a single ligand could generate several complexes with different structures. Sulphonyliminobisphosphine were then introduced as a new class of ligands. These precursors rearrange in the presence of nickel to generate diphosphinamine nickel complexes. Activated by MAO, these complexes are active in the reaction of ethylene oligomerisation and produce short chain olefins. A new approach that forms stable supramolecular nickel complexes was developed by combining two phosphorus ligands with Ni(0). These complexes stabilised by hydrogen bonding are directly active in the reaction of ethylene oligomerisation with some catalysts leading to high selectivity to 1-butene (up to 84%). To understand the origin of that selectivity, the scope of complexes was extended to ligands with different steric and electronic properties. Their evaluation in the reaction of ethylene oligomerisation evidenced a relation between the catalyst structure and the selectivity of the reaction. Mechanistic studies, under an ethylene atmosphere, reveals that cationic complexes rearrange to neutral complexes, which are likely, the active species
McPherson, Matthew Joseph. "Control of water and toxic gas adsorption in metal-organic frameworks." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/16489.
Full textBignami, Giulia Paola Maria. "Exploiting isotopic enrichment for a solid-state NMR investigation of 'ADORable' zeolites and breathing metal-organic frameworks." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/14202.
Full textHanyu, Yuki. "Chemical scanning probe lithography and molecular construction." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:409308ed-4806-44fc-87c3-5c1fe8971f79.
Full textKelly, Michael Jon. "Hybrid ferrocene-based systems." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:fd46594d-98d6-4f8a-a6ab-eb5ee74ba7f3.
Full textGonzalez-Santiago, Berenice. "Synthesis and properties of scandium carboxylate metal-organic frameworks." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6904.
Full textAltmann, Philipp Johannes [Verfasser], Roland A. [Akademischer Betreuer] Fischer, Jason [Gutachter] Love, János [Gutachter] Mink, and Roland A. [Gutachter] Fischer. "Supramolecular Organometallics : Carbene Chemistry beyond the Molecule / Philipp Johannes Altmann ; Gutachter: Jason Love, János Mink, Roland A. Fischer ; Betreuer: Roland A. Fischer." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1153122502/34.
Full textAltmann, Philipp Johannes Verfasser], Roland A. [Akademischer Betreuer] [Fischer, Jason [Gutachter] Love, János [Gutachter] Mink, and Roland A. [Gutachter] Fischer. "Supramolecular Organometallics : Carbene Chemistry beyond the Molecule / Philipp Johannes Altmann ; Gutachter: Jason Love, János Mink, Roland A. Fischer ; Betreuer: Roland A. Fischer." München : Universitätsbibliothek der TU München, 2018. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20180212-1403311-1-5.
Full textMembrat, Romain. "Réactions de transfert d'hydrogène catalysées par les complexes de palladium et de platine associés aux ligands phosphinito-acide phosphineux." Electronic Thesis or Diss., Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/190719_MEMBRAT_386crd806cefe861cbrkq829aijwx_TH.pdf.
Full textThe notion of metal catalyzed hydrogen transfer presented in this manuscript relies in generating an active metal hydride from an hydrogen donor (alcohol) and transferring it toward an unsaturated product with a view to molecular complexity increasing. A broad variety of product could be targeted with this concept and its variants. The phosphinito-phosphinous acid ligand which is negatively charged ligand is capable to generate strikingly active palladium and platinum hydride. In the first part of this work, a new anaerobic alcohol oxidation system with remarkable properties of chemioselectivity has been developed. Complementary studies have allowed a good understanding of the hydride transfer mechanism. Moreover it highlighted the interesting ability of the PAP ligand to self adapt its own electronic properties specifically to each steps of the catalytic cycle. In a second stage, a cascade process oxidation - double C(sp3)-N bond activation has been presented. It has been shown that M/PAP complexes could act as a weak Lewis acid. Finally, an enantioselective version of hydride transfer processes has been studied through enantioselective isomerization of allylic alcohols. The effect of the combination of a P - stereogenic ligand and new secondary chirality inductors (central chirality borne by the X-type ligand and inherent chirality borne by a supramolecular C1 symmetric moiety) has been evaluated
Ghosh, Sushobhan. "Self-Assembly Of Discrete Molecular Architectures : Design, Synthesis And Characterization." Thesis, 2009. http://etd.iisc.ernet.in/handle/2005/2110.
Full textShanmugaraju, S. "Self-Assembly Of Functional Supramolecular Architectures via Metal-Ligand Coordination." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2484.
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