Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (10): 882-886.doi: 10.3866/PKU.WHXB19941004

• ARTICLE • Previous Articles     Next Articles

Syntheses and Crystal Structure of Tetracobalt Carbonyl Clusters Co4(CO)8(μ-CO)2(μ4-PSR)2

Wu Bao-Shan, Liu Qi-Wang, Hu Xiang, Su Hai-Quan, Liu Shu-Tang, Jin Xiang-Lin   

  1. National Laboratory for Structural Chemistry of Unstable and Stable Species|The Department of Chemistry,Inner Mongolia University,Huhehaote 010021|The Department of Chemistry,Peking University,Beijing 100871
  • Received:1993-04-27 Revised:1993-10-14 Published:1994-10-15
  • Contact: Liu Qi-Wang

Abstract:

The title compounds Co4(CO)8(μ-CO)2 (μ4-PSR) [R=-CH3, -C2H5, -C(CH3)3,-(CHa)4CH3] were synthesized by the reaction of Co2(CO)8 with RSPCl2. They were characterized by IR, 1HNMR, elemental analysis. The crystal and molecular structure of Co4(Co)8(μ-CO)2 (μ4-PSC2H5) has been determined by single crystal diffraction method. Crystal data: monoclinic, space group P21 /c, with a=8-445(3), 6=8.562(3), c= 17.125(6)Å, β=104.26 (3)' 9 V=1200.1Å3, Z=2, Dc=1.937gcm-3. Its molecular structure contains an octahedral Co4P2 skeleton which consists of a rectangular four cobalt atoms core and the Co4 core is capped above and below by two quadruply bridging PSR ligands.

Key words: Alkyl sulfide, Phosphorus bridged ligand, Tetracobalt carbongl cluster, Syntheses and crystal structure