Acta Phys. -Chim. Sin. ›› 1990, Vol. 6 ›› Issue (04): 449-455.doi: 10.3866/PKU.WHXB19900412

• ARTICLE • Previous Articles     Next Articles

Studies on Nucleophilic Substitution Reaction of μ-Acyl Iron-Sulfur Complexes——Synthesis and Structures of Some PPh3-OR AsPh3-Substituted μ-Acyl Fe-S Complexes

Song Li-Cheng; Liu Rong-Gang; Hu Qing-Mei; Wang Ji-Tao; Liu Xiao-Lan; Miao Fang-Ming   

  1. Department of Chemistry, Nankai University, Tianjin; Department of Chemistry, Tianjin Normal University, Tianjin
  • Received:1989-03-28 Revised:1989-10-03 Published:1990-08-15
  • Contact: Song Li-Cheng

Abstract: Mono-PPh_3- or mono-AsPh_3-substituted derivatives (μ-ArCO) (μ-RS) Fe_2(CO)_5PPh_3(Ar=Ph, R=Et or B_u~t; Ar=p-ClC_6H_4, R=B_u~t) and (μ-ArCO) (μ-RS)Fe_2(CO)_5AsPh_3 (Ar=Ph, R=Et or B_u~t) have been synthesized through reaction of the corresponding μ-acyl complexes (μ-ArCO) (μ-RS)Fe_2(CO)_6 with PPh_3 in boiling benzene for 2 h or with AsPh_3 in the same solvent refluxing for 12 h. For these new substituted derivatives the structures were characterized by combustion analysis, IR and ~1H NMR spectros. Furthermore, the crystal structure of one representative of these new complexes (μ-p-ClC_6H_4CO)(μ-B~t_uS)Fe_2(CO)_5PPh_3 has been determined by an X-ray diffraction technique. The crystals belong to triclinic system with space group P1. The cell parameters are a=1.0536(2), b=1.1714(4), c=1.4841(8) nm; α=98.47(4), β=102.70(4), γ=105.78(3)°; V=1.6771 nm; Z=2; D_C=1.468 g·cm~(-3). Final deviation factor R=0.065.