Chemistry of transition-metal clusters with mixed Sb/S ligands:: Evidence for a terminal Sb=S double bond in Cp*3Rh3Sb2S5 (Cp* = C5Me5)

被引：6
|
作者：
Lange, A
Kubicki, MM
Wachter, J [1 ]
Zabel, M
机构：
[1] Univ Regensburg, Inst Anorgan Chem, D-93040 Regensburg, Germany
[2] Univ Bourgogne, UMR5188, Lab Synth & Electrosynth Organomet, F-21078 Dijon, France
来源：
INORGANIC CHEMISTRY | 2005年 / 44卷 / 21期
关键词：
D O I：
10.1021/ic050493e
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reaction Of [CP2*Rh2Cl4] (CP* = C5Me5) with a slight excess of K3SbS3 in boiling THF gave the neutral clusters [CP*4Rh4S5] (1), [CP*3Rh3Sb2S5] (2), and after salt metathesis [CP*3Rh3SbSn]PF6 (3; n = 5 and 6). The structures of 1-3 are heterocubane clusters with Cp*Rh, S, and Sb vertices but with sulfur inserted into one (11 and 2) or two (3) edges. X-ray diffraction analysis of 2 additionally reveals a very short Sb-S distance of 2.297(l) A within the novel mu(3)-Sb2S4 ligand. Density functional theory calculation of the model compounds [SSbS](3-), [HSSbS](2-), and [HSSbH2S](0) provided strong evidence for the existence of a stable terminal Sb=S double bond in 2.
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收藏
页码：7328 / 7332
页数：5
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