CRYSTAL AND MOLECULAR-STRUCTURES OF BIS[(ETA-5-CYCLOPENTADIENYL)DICARBONYLCHROMIUM] SULFIDE, A NOVEL ORGANOMETALLIC COMPLEX POSSESSING A CR=S=CR LINKAGE

被引:59
作者
GREENHOUGH, TJ [1 ]
KOLTHAMMER, BWS [1 ]
LEGZDINS, P [1 ]
TROTTER, J [1 ]
机构
[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER V6T 1W5,BC,CANADA
关键词
D O I
10.1021/ic50202a049
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of Na[(η5-C5H5)Cr(CO)3] with S3N3CI3 in tetrahydrofuran affords the new bimetallic complex, [(η5-C5H5)Cr(CO)2]2S, in 34% yield. This complex crystallizes with two independent molecules in space group PI of the triclinic system in a cell of dimensions a=8.152 (1) υ, b=10.288 (1) υ, c=18.441 (2) υ, a=88.01 (1)°, (8=81.51 (l)°,and γ=89.28 (1)°. The structure has been refined by full-matrix least-squares methods to values of R and Rv of 0.045 and 0.073, respectively, for 42 anisotropic atoms and 4882 observed reflections. The most chemically interesting feature of the structure is the unprecedented, central CrSCr linkage which is essentially linear and very short (average Cr-S=2.074 A). These facts can be interpreted in terms of Cr≡S≡Cr multiple bonding, a rationale which is consistent with the relative chemical inertness of this linkage and the observed stereochemical nonrigidity of [(η5-C5H5)Cr(CO)2] 2S in solution at ambient temperature. © 1979, American Chemical Society. All rights reserved.
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页码:3543 / 3548
页数:6
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