Acta Phys. -Chim. Sin. ›› 1988, Vol. 4 ›› Issue (05): 531-534.doi: 10.3866/PKU.WHXB19880518

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SYNTHESIS AND STRUCTURE OF (η5-C5H5)4Mo4Fe23-S)5(CO)5

Huang Jinshun*; Cai Qingrong; He Meiyun; Huang Mingsheng; Lu Jiaxi   

  1. Fujian Institute of Research on the Structure of Matter; Academa Sinica
  • Received:1987-02-10 Revised:1987-07-07 Published:1988-10-15
  • Contact: Huang Jinshun

Abstract: (η~5-C_5H_5)_4Mo_4Fe_2(μ_3-S)_5(CO)_5 have been prepared from (η~5-C_5H_5)_2Mo_2(CO)_6 and Fe_8S_2(CO)_9 under toluene reflux for 14.5 hrs.The crystal and molecular structures of (η~5-C_5H_5)_4Mo_4Fe_2(μ_3-S)_5(CO)_5 were studied by X-ray structure analysis. The Crystallographic data are as follows: monoclinic, space group P2_1/n, unit cell: a=1.0589(4), b=1.7260(4), c=1.8963(4) nm, β=101.44(2)°, V=3.3967 nm, D_c=2.06 gcm~(-3) for Z=4, X-ray data were obtained over the range of 2°<2θ<50° via the ω-2θ scan mode with MoKα radiation on an Enraf-Nonius CAD4 diffractometer. The structure was solved by direct method (MULTAN) and refined by full matrix least-squares techniques for 3993 reflections with I>2σ(I), The final R=0.081. Figure 1 illustrates the configuration of the molecule (η~5-C_5H_5)_4Mo_4Fe_2(μ_3-S)_5(CO)_5, composing of a cubane-like (FeMo_3S_4) core and a trigonal pyramid (MoFe_2S) core, which linked by sharing Fe(1) atom.