Tesis sobre el tema "Polynuclear Coordination Complexes"
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Kaur, Gurpreet. "Structure and reactivity of dinuclear and polynuclear metal complexes". Thesis, University of Canterbury. Chemistry, 2014. http://hdl.handle.net/10092/9945.
Texto completoGriffiths, Kieran. "Catalytic and topological aspects of Schiff base supported 3d-4f polynuclear coordination complexes". Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/75278/.
Texto completoHashiguchi, Ryota. "Studies on Polynuclear Metal Complexes and Low-Dimensional Mixed-Valence Halogen-Bridged Transition Metal Complexes Based on them". 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225426.
Texto completoAhmed, Ejaz y Michael Ruck. "Chemistry of polynuclear transition-metal complexes in ionic liquids". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138716.
Texto completoDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
Ahmed, Ejaz y Michael Ruck. "Chemistry of polynuclear transition-metal complexes in ionic liquids". Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27774.
Texto completoDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Wang, Yiting. "Syntheses, Crystal Structures and Characterizations of Mono- and Polynuclear Ni- and Co-based Molecular Magnets". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS225.
Texto completoThe objective of elaborating “magnets by design” can be achieved by tailoring the molecular structures of coordination complexes. The designed molecules are expected to exhibit the characteristics required for specific applications, virtually resulting from their rich structural diversity. Mononuclear Ni-based complexes with large magnetic anisotropy and polynuclear Ni- and Co-based molecules are designed in this dissertation. The syntheses, magnetic studies, and electrochemical properties of the complexes containing non-innocent bridge ligand are investigated. The Ni(II) mononuclear complexes with trigonal bipyramid geometry are prepared by tuning the axial ligands and the counter anions. The effect of the nature of the axial ligands and the structural change induces by the counter anions on magnetic anisotropy is studied experimentally and analyzed with the help of theoretical calculations. Large organic molecules are used to design trinuclear complexes with large magnetic anisotropy and weak exchange coupling. Several polynuclear Ni- and Co-based complexes with TTC³⁻ acting as an innocent bridging ligand and HHTP as a typical non-innocent ligand, are crystallized with various structures (TTC = Trithiocyanurate; HHTP = Hexahydroxytriphenylene). For the complexes containing the non-innocent ligand (HHTP), radical anions are produced by electrochemistry. The combination of spectroelectrochemical and Electron Paramagnetic Spectroscopy coupled to electrochemistry studies allow investigating the delocalization of the electrons on the generated organic radicals and the exchange coupling among the metal ions
Clarisse, Jade. "Croissance cristalline de polymères de coordination : synthèse, suivi calorimétrique et caractérisation structurale". Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10269/document.
Texto completoPorous coordination polymers so called Metal Organic Frameworks (MOFs) are considered for promising development and applications such as in catalyst. However, the understanding of the synthesis mechanisms and crystal growth is a challenge. Currently, only a few in-situ studies have been done to rationalize the synthesis of MOFs, such as monitoring by nuclear magnetic resonance, mass spectroscopy and energy dispersive X-ray diffraction. In this manuscript the differential scanning calorimetry is proposed as an easier technique to implement that allows a continuous calorimeter tracking to identify the phenomena which govern the synthesis such as the formation reaction and crystallization temperatures. With such thermal analyses, the temperature range of the reaction was determined and the importance of various parameters influencing the synthesis was studied, such as heating temperatures and cooling speeds or reactant concentration. This was applied to the synthesis of new porous coordination compounds based on porphyrin acid derivative in order to understand the important reaction steps. Crystal structure determinations show that some are Porphyrin Paddle-Wheel Frameworks. New approaches to the MOFs synthesis are also proposed using organic ligands like acids, imines, oximes and Schiff bases
EL, AMOURI HANZ. "Synthese et reactivite catalytique de composes homo- et heterobinucleaires". Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13156.
Texto completoXu, Zhiqiang. "The magnetism and coordination chemistry of mononuclear and polynuclear complexes of copper(II) and other first row transition metal ions derived from open-chain diazine (N-N) ligands". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ36217.pdf.
Texto completoIasco, Olga. "Aimants moléculaires à base de clusters polymétalliques : synthèse, structures cristallines et étude des propriétés magnétiques". Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00838606.
Texto completoVidovic, Denis. "Polynukleare Cluster der d-Metalle mit chelatisierenden Liganden". Doctoral thesis, [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=97529962X.
Texto completoSheppard, Christopher Lorenzo. "Magnetostructural correlations in polynuclear complexes of phtalazine based tetra- and hexadentate ligands /". 1998.
Buscar texto completoLin, Hsuan-Chou y 林玹州. "Chemistry of Polynuclear Copper(I) Complexes and Coordination Polymers Supported by Formamidine &; Formamidinate Ligands". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/s83vn7.
Texto completo中原大學
化學研究所
103
This thesis discusses the structures and properties of polynuclear copper(I) complexes and coordination polymers supported by formamidine and formamidinate ligands. One-pot solvothermal reactions of 3-aminopyridine, 4-chloroaniline, 4-bromoaniline, 4-iodoaniline, or 4-amino-2-chloropyridine with triethylorthoformate and CuX (X = Cl–, Br– , I–) afforded complexes [Cu3(3-pyf)2Cl3]n, 1, [Cu4(3-pyf)4Br4], 2, [Cu(3-pyf)I]n, 3, [Cu2(4-cphf)2], 7, [Cu(4-Hbphf)4Br2], 8 , [Cu2(4-iphf)2], 10 and [Cu2(2-cpf)2], 11, whereas the reactions of CuX (X = Cl–, Br–) with 3-aminopyridine and 4-bromoaniline, in a Methanol (MeOH) or tetrahydrofuran (THF) or acetonitrile (ACN) solution containing triethylorthoformate and sodium hydroxide gave complexes [Cu4(3-pyf)4], 4, {[Cu8(3-pyf)8]·5THF}, 5, [Cu(3-pyf)]n, 6, and[Cu2(4-bphf)2], 9, which were characterized by X-ray crystallography. Complex 1 is a 3D coordination polymer with (62.82.102)(62.8)2 - sur; bbf-3,4-Ccm topology, complex 2 is a very rare example of tetranuclear paddlewheel complex containing rhombohedral Cu2X2, complex 3 is a 1D chain structure, complex 4 is a tetranuclear complex with cuprophilicity, complex 5 is the first octanuclear complex with Cu(I)---Cu(I) interactions, complex 6 is a 2D structure of {44.62} topology, complexes 7, 9–11 are dinuclear copper(I) complexes that shows different distances of Cu(I)---Cu(I), and complex 8 is a dinuclear complex containing rhombohedral Cu2Br2 unit.
Kobielska, P. A., Richard Telford, J. Rowlandson, M. Tian, Z. Shahin, A. Demessence, V. P. Ting y Sanjit Nayak. "Polynuclear complexes as precursor templates for hierarchical microporous graphitic carbon: An unusual approach". 2018. http://hdl.handle.net/10454/16535.
Texto completoA highly porous carbon was synthesized using a coordination complex as an unusual precursor. During controlled pyrolysis, a trinuclear copper complex, [CuII3Cl4(H2L)2]·CH3OH, undergoes phase changes with melt and expulsion of different gases to produce a unique morphology of copper-doped carbon which, upon acid treatment, produces highly porous graphitic carbon with a surface area of 857 m2 g–1 and a gravimetric hydrogen uptake of 1.1 wt % at 0.5 bar pressure at 77 K.
EPSRC (EP/R01650X/1 for VPT, and EP/E040071/1 for MT) and the University of Bristol
Hsü, Chih-chʻiang. "The magnetism and coordination chemistry of mononuclear and polynuclear complexes of copper(II) and other first row transition metal ions derived from open-chain diazine (N-N) Ligands /". 1998.
Buscar texto completoΚουμούση, Ευαγγελία. "Νέοι οργανικοί υποκαταστάτες στη χημεία των πολυπυρηνικών συμπλόκων του μαγγανίου : σύνθεση, δομή, χημική δραστικότητα και μαγνητική μελέτη". Thesis, 2012. http://hdl.handle.net/10889/5368.
Texto completoThe synthesis and characterization of polynuclear metal complexes (clusters) containing paramagnetic 3d-metal ions in intermediate oxidation states have gained intense interest due to the applications of these compounds in several fields of science, such as bioinorganic chemistry, materials science, molecular physics and theoretical chemistry. Such high nuclearity transition metal clusters are one of the growing research subjects in Molecular Magnetism, given the fact that they often possess a fairly large ground-state spin value, which is one of the necessary requirements for a molecule to be able to exhibit the phenomenon of single-molecule magnetism. In the present work, we studied the reaction scheme manganese/α-benzoin oxime (bzoxH2) under basic conditions, which has led to the isolation, and structural (through single-crystal X-ray crystallography) and magnetochemical characterization of the molecular complexes [Mn8O4(bzox)8(MeOH)4] (1), [Mn9O2(bzox)11(bzoxH)(MeOH)4(H2O)2] (2) and [Mn9O2(bzox)11(bzoxH)(H2O)6] (3). Complexes 1-3 are the first structurally characterized trivalent metal clusters with the ligand α-benzoin oxime. Compound 1 consists of eight MnIII atoms and its irregular metal core presents an unprecedented topology based on four triangular Mn3 units, which are vertical to each other, thus leading to an ST = 2 ground state. The isostructural compounds 2 and 3 comprise nine MnIII atoms arranged in a unusual topology based on linear and triangular Mn3 units, thus leading to an ST = 3 ground state.