Metal carbonyl derivatives of lanthanides. CpLuCl2-induced synthesis of the trinuclear tungsten cluster [Na(DME)3]2[W3(CO)14] |
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| Authors: | A. Z. Voskoboinikov E. B. Chuklanova A. I. Gusev A. V. Kisin I. P. Beletskaya |
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| Affiliation: | (1) State Research Institute of Chemistry and Technology of Organoelement Compounds, 38 sh. Entuziastov, 111123 Moscow, Russian Federation;(2) M. V. Lomonosov Moscow State University, Leninskie Gory, 119899 Moscow, Russian Federation |
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| Abstract: | The cluster [Na(DME)3]2[W3(CO)14] (1) was prepared by treating CpLuCl2 with an equimolar mixture of Na2W(CO)5 and Na2W2(CO)10 in DME and characterized by X-ray analysis (MoK radiation, 653 reflections,R = 0.125). The crystals are rhombic,a=18.749(4) Å,b=15.074(3) Å,c=9.505(3) Å,Z = 2, space groupCmmm. The W-W distance in the W-W-W chain is 2.79 Å. The carbonyl ligands at the tungsten atoms are eclipsed. Compound 1 is the first example of a homometallic carbonyl cluster of an early transition metal. It is suggested that CpLuCl2 interacts with Na2W(CO)5 to afford the highly reactive species CpLu (CO)5 which further reacts with Na2W2(CO)10 to form1.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 582–585, March, 1993. |
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| Keywords: | lutetium tungsten carbonyls molecular structure |
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