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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1142

Title: The shortened transition metal-tellurium bonds in organometallic clusters
Authors: PASYNSKII, AA
TORUBAEV, YV
GRIGOR'EV, VN
BLOKHIN, AI
HERBERHOLD, M
MATHUR, P
Keywords: main-group elements
multiple bonds
group-15 elements
crystal-structure
complexes
coordination
radicals
atom
Issue Date: 2009
Publisher: SPRINGER/PLENUM PUBLISHERS
Citation: JOURNAL OF CLUSTER SCIENCE,20(1)193-204
Abstract: The shortening of partly multiple M-Te (M = Mn, Fe, Co, Cr or W) bonds is observed for two classes of organometallic compounds: (1) formally electron-deficient species with additional donor-acceptor interaction between Te lone pairs and half-occupied d-orbitals of M; (2) formally electron-saturated species having additional dative interaction between M lone pairs and LUMO of Te. These compounds could be prepared by two main methods: (a) interaction of [CpMn(CO)(2)PhC(O)(-)]Li(+) with Te proceeds via formation of intermediate {[CpMn(CO)(2)](2)Te}(2-) which is further transformed into binuclear complex [CpMn(CO)(2)](2)Te(CH(2)Ph)(2) or into trinuclear ditelluride cluster [CpMn(CO)(2)](3)Te(2) on one hand or to mixed-metal monotelluride clusters [CpMn(CO)(2)](2)TeM(CO)(5) on another hand. (b) treatment of Fe(CO)(5), CpMn(CO)(2)(THF) or Me(4)C(4)Co(CO)(2)I with [PhTeI](4), PhTeI(3) or PhTeI(2)HC = CPhI results in different PhTeI-containing complexes of Fe, Mn or Co. The molecular structures of all new compounds were studied by means of X-ray diffraction analyses and the mechanism of M-Te bond shortening is discussed.
URI: http://dx.doi.org/10.1007/s10876-008-0227-0
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14343
http://hdl.handle.net/100/1142
ISSN: 1040-7278
Appears in Collections:Proceedings papers

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