SYNTHESES OF MO(PME(3))(6) AND TRANS-MO(PME(3))(4)(E)(2) (E=S, SE, TE) - THE FIRST SERIES OF TERMINAL SULFIDO, SELENIDO, AND TELLURIDO COMPLEXES OF MOLYBDENUM

被引:60
作者
MURPHY, VJ [1 ]
PARKIN, G [1 ]
机构
[1] COLUMBIA UNIV,DEPT CHEM,NEW YORK,NY 10027
关键词
D O I
10.1021/ja00117a021
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Mo(PMe(3))(6) has been synthesized by the reduction of MoCl5 with Na(K) alloy using PMe(3) as a reactive solvent. In solution, Mo(PMe(3))(6) exists in equilibrium with Mo(PMe(3))(4)(eta(2)-CH(2)PMe(2))H and PMe(3). At 30 degrees C, the equilibrium constant is a factor of ca. 2 x 10(3) less than that for the analogous tungsten system. The reactions of Mo(PMe(3))(6) and Mo(PMe(3))(4)(eta(2)-CH(2)PMe(2))H With H2S, H2Se, Se, and Te/PMe(3) have provided convenient syntheses of Mo(PMe(3))(4)(E)(2) (E = S, Se, Te), the first series of terminal sulfide, selenido, and tellurido derivatives of molybdenum. Mo(PMe(3))(4)(S)(2) is monoclinic, P2/n (No. 13), a = 15.947(6) Angstrom, b = 9.704(2) Angstrom, c = 15.980(3) Angstrom, beta = 112.24(2)degrees, V = 2289(1) Angstrom(3), Z = 4. Mo(PMe(3))(4)(Se)(2) is monoclinic, P2/n (No. 13), a = 16.105(3) Angstrom, b = 9.777(3) A, c = 16.136(4) Angstrom, beta = 113.34(2)degrees, V = 2332(1) Angstrom(3), Z = 4. Mo(PMe(3))(4)(Te)(2) is tetragonal, I ($) over bar 42m (No. 121), a = b = 9.738(1) Angstrom, c = 12.373(2) Angstrom, V = 1171.2(6) Angstrom(3), Z = 2.
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页码:3522 / 3528
页数:7
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