Literatura académica sobre el tema "Poly-Oxo cluster"
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Artículos de revistas sobre el tema "Poly-Oxo cluster"
Martin, Nicolas P., Christophe Volkringer, Pascal Roussel, Juliane März, Christoph Hennig, Thierry Loiseau y Atsushi Ikeda-Ohno. "{Np38} clusters: the missing link in the largest poly-oxo cluster series of tetravalent actinides". Chemical Communications 54, n.º 72 (2018): 10060–63. http://dx.doi.org/10.1039/c8cc03744b.
Texto completoTrabelsi, Sondes, Giulia Fornasieri, Laurence Rozes, Andreas Janke, Axel Mensch, Clément Sanchez y Manfred Stamm. "Tailoring the structure of hybrid organic inorganic nanomaterials built on tetra- and polyfunctional alco-oxo-titanium clusters in polystyrene". Journal of Applied Crystallography 39, n.º 5 (12 de septiembre de 2006): 656–60. http://dx.doi.org/10.1107/s0021889806028871.
Texto completoDufaye, Maxime, Nicolas P. Martin, Sylvain Duval, Christophe Volkringer, Atsushi Ikeda-Ohno y Thierry Loiseau. "Time-controlled synthesis of the 3D coordination polymer U(1,2,3-Hbtc)2 followed by the formation of molecular poly-oxo cluster {U14} containing hemimellitate uranium(iv)". RSC Advances 9, n.º 40 (2019): 22795–804. http://dx.doi.org/10.1039/c9ra03707a.
Texto completoPatrahau, Bianca, Clément Chaumont, Laurent Barloy, Petra Hellwig, Marc Henry, Frédéric Melin, Matthias Pauly y Pierre Mobian. "From a bulk solid to thin films of a hybrid material derived from the [Ti10O12(cat)8(py)8] oxo-cluster and poly(4-vinylpyridine)". New Journal of Chemistry 43, n.º 3 (2019): 1581–88. http://dx.doi.org/10.1039/c8nj05410j.
Texto completoFalaise, Clément, Christophe Volkringer, Jean-François Vigier, Arnaud Beaurain, Pascal Roussel, Pierre Rabu y Thierry Loiseau. "Isolation of the Large {Actinide}38 Poly-oxo Cluster with Uranium". Journal of the American Chemical Society 135, n.º 42 (11 de octubre de 2013): 15678–81. http://dx.doi.org/10.1021/ja4067207.
Texto completoFalaise, Clément, Christophe Volkringer, Christoph Hennig y Thierry Loiseau. "Ex-Situ Kinetic Investigations of the Formation of the Poly-Oxo Cluster U38". Chemistry - A European Journal 21, n.º 46 (29 de septiembre de 2015): 16654–64. http://dx.doi.org/10.1002/chem.201502207.
Texto completoAkashi, Daisuke, Hiroaki Kido, Yoichi Sasaki y Tasuku Ito. "Preparation and Electrochemical Response of Poly(4-vinylpyridine)-Coordinated Oxo-acetato Triruthenium Cluster Film". Chemistry Letters 21, n.º 1 (enero de 1992): 143–46. http://dx.doi.org/10.1246/cl.1992.143.
Texto completoLouisy, Elodie, Séverine Bellayer, Gaëlle Fontaine, Laurence Rozes y Fanny Bonnet. "Novel hybrid poly(l-lactic acid) from titanium oxo-cluster via reactive extrusion polymerization". European Polymer Journal 122 (enero de 2020): 109238. http://dx.doi.org/10.1016/j.eurpolymj.2019.109238.
Texto completoArmstrong, Fraser A. "Why did Nature choose manganese to make oxygen?" Philosophical Transactions of the Royal Society B: Biological Sciences 363, n.º 1494 (30 de octubre de 2007): 1263–70. http://dx.doi.org/10.1098/rstb.2007.2223.
Texto completoMartin, Nicolas P., Christophe Volkringer, Natacha Henry, Xavier Trivelli, Grégory Stoclet, Atsushi Ikeda-Ohno y Thierry Loiseau. "Formation of a new type of uranium(iv) poly-oxo cluster {U38} based on a controlled release of water via esterification reaction". Chemical Science 9, n.º 22 (2018): 5021–32. http://dx.doi.org/10.1039/c8sc00752g.
Texto completoTesis sobre el tema "Poly-Oxo cluster"
Andriotou, Despoina. "Synthèse de complexes et de polymères de coordination avec des cations de métaux de haute valence (Nb) ou d'actinides (Th,U)". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR001.
Texto completoIn this thesis work, we explore the chemistry and reactivity of high valence transition metal cations (4+ and 5+) as well as tetravalent actinides towards carboxylate ligands and the possibility to isolate multidimensional metal-organic frameworks.The first part deals with the chemistry of a poorly studied metal, the niobium at its +4 and +5 oxidation states. The reaction of niobium(IV) tetrachloride precursor towards pyridine-dicarboxylic acid ligands in different organic solvents leads to the isolation of four complexes with discrete 8-fold coordinated Nb(IV) mononuclear units, for which the d1 configuration has been analyzed by magnetic measurements, EPR and XPS. The reactivity of the pentavalent ethoxide niobium(V) precursor has been investigated with a series of mono- and poly-carboxylic acids ligands, by controlling the hydrolysis rate. A total of twelve crystalline coordination complexes has been isolated with variable molecular {Nb2O}, {Nb4O4}, {Nb8O12} and {Nb12O21} cores, by successfully controlling the condensation process.The second part is dedicated to the crystal chemistry of four novel thorium(IV) coordination polymers, which were isolated by using 4,4'-azobenzenedicarboxylate and 3,3',5,5'-azobenzenetetracarboxylate ligands with the help of monocarboxylic acid ligands as modulators for improving the crystal growth process. In parallel, mixed Th-U carboxylate compounds were prepared with a ‘prior to synthesis' substitution procedure, for three distinct systems, involving 9-anthroic acid, amino derived 4,4'-biphenyldicarboxylic acid and fumaric acid. They were studied under SEM-EDX to determine the efficiency of the substitution and thermal calcination led to the formation of solid solution Th1-xUxO2 oxides. Full characterization study has been conducted for the different phases (single-crystal XRD, PXRD, IR, TGA, SEM). The adsorption capacities were analyzed with N2, Xe, Kr, CH4 and CO2 gases for the samples exhibiting porosity (mainly for Th-based compounds)
Chaumont, Clément. "Vers la conception de matériaux hybrides colorés à base de titane(IV)". Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF034/document.
Texto completoIn the field of materials science, hybrid materials are of crucial importance due to their numerous applications. In this work, two strategies were considered to synthesize such hybrid materials.In a first part, we have tackled a one step synthetic approach by reacting resorcinol-Based oligophenylene organic ligands with titanium isopropoxide. Unfortunately, these reactions led to amorphous solids and no further structural information concerning these precipitates was obtained.In a second part, we have described a sequential approach which first concerns the preparation of pre-Ordered systems that are, in a second step, self-Assembled with organic linkers. Thus, our approach deals with the preparation of a new building block formulated as Ti10O12(cat)8(pyr)8 and three derivatives formulated as Ti10O12(cat)8(pyr’)8 (pyr’ = substituted pyridine) obtained by ligands exchange. These complexes exhibit visible light absorption properties that were studied through UV-Vis absorption spectroscopy and theoretical calculations. Then, the [Ti10O12(cat)8] motif was used to generate hybrid materials via ligands substitutions with polytopic ligands such as 4,4’-Bipyridine and poly(4-Vinylpyridine)
Martin, Nicolas. "Synthèse et étude cristallochimique de carboxylates d'actinides tétravalents (Th, U, Np) : polymères de coordination et entités moléculaires à haute nucléarité". Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10164/document.
Texto completoUnderstanding the behavior of actinides in the environment is an important and very complex issue due to phenomena involved in chemical processes. Among them, one can mention the complexation, via carboxylate functions from the humic substances present in the soils. In an aqueous medium, actinides at the oxidation state IV are very sensitive to the hydrolysis process impacting their mobility. This thesis focuses the reactivity of these actinides (IV) (Th, U and Np) in the presence of organic ligands with aromatic carboxylate functions, in order to improve our knowledge about entities formed and linked to such organic linkers.More than forty new compounds based on actinides (IV) and polycarboxylic acids have been synthesized. Their crystallographic structures were determined by single crystal XRD and their descriptions are reported. The control of the hydrolysis of these metals within our compounds has been managed by varying the acidity in aqueous medium or by addition of controlled amount of water in organic solvents. Some of the compounds presented are built from polynuclear moieties having from 2 to 38 metal centers. For the latter ({U38} and {Np38}), a new synthetic pathway was investigated. During the study of these different compounds, we have demonstrated the analogies or the differences existing between these actinides, and have improved our knowledge on the crystallochemistry of neptunium (IV). Finally, we proved the ability of N- and O-donor ligands to simultaneously complex the uranium (IV) with other di- (Mn) or trivalent (Ln) metals