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| Field | Value |
| Title | The shortened transition metal-tellurium bonds in organometallic clusters |
| Names |
PASYNSKII, AA
(author) TORUBAEV, YV (author) GRIGOR'EV, VN (author) BLOKHIN, AI (author) HERBERHOLD, M (author) MATHUR, P (author) |
| Date Issued | 2009 (iso8601) |
| 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. |
| Genre | Article; Proceedings Paper |
| Topic | main-group elements |
| Identifier | 1040-7278 |
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