Publication type: Journal Article
Publication date: 2003-07-03
scimago Q3
SJR: 0.292
CiteScore: 2.7
Impact factor: —
ISSN: 00442313, 15213749, 08631786
Inorganic Chemistry
Abstract
Hydrogenolysis of the dialkyl complexes [Y(η5-C5Me4SiMe2R)(CH2SiMe3)2(THF)] (1a, R = Me; 1b, R = Ph) results in the formation of the tetranuclear dihydrido complexes [{(η5-C5Me4SiMe2R)Y}4(μ-H)4(μ3-H)4(THF)2] (2a, R = Me; 2b, R = Ph), characterized by NMR spectroscopy. 2a was studied by single crystal X-ray diffraction. In the solid state, an unsymmetrical tetrahedral configuration of four [Y(η5-C5Me4SiMe3)] units is observed, two of which contain each one molecule of THF. Each yttrium atom is bonded to two μ2- as well as three μ3-bridging hydrido ligands.
Synthese und Charakterisierung eines vierkernigen Hydrid-Clusters von Yttrium [{η5-(C5Me4SiMe3)Y}4(μ-H)4(μ3-H)4(THF)2]
Die Hydrogenolyse von Dialkyl-Komplexen [Y(η5-C5Me4SiMe2R)(CH2SiMe3)2(THF)] (1a, R = Me; 1b, R = Ph) fuhrt zu vierkernigen Dihydrido-Komplexen [{(η5-C5Me4SiMe2R)Y}4(μ-H)4(μ3-H)4(THF)2] (2a, R = Me; 2b, R = Ph), die mit NMR Spektroskopie untersucht wurden. Der Komplex 2a wurde mit einer Einkristallstrukturanalyse untersucht. Im Festkorper wurde eine unsymmetrische tetraedrische Anordnung der vier [Y(η5-C5Me4SiMe3)]-Einheiten gefunden, von denen zwei je ein Molekul THF koordinieren. Jedes Yttriumatom ist an zwei μ2- und an drei μ3-verbruckende Hydridoliganden gebunden.
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