摘要
本文报道了(η~5-C_5H_4C_3H_7—i)_2Mo_2(CO)_6的合成及晶体结构。晶体属于三斜晶系,空间群P,晶胞参数a=7.548(2),b=8.662(1),c=8.888(1),a=91.11(1),β=106.43(1),γ=92.59(1)°,V=556.48,M_r=574.3,Z=1,D_x=1.714g/cm^3,μ(MoKα)=11.33cm^(-1),F(000)=286。最后偏离因子R=0.016。分子具有C_i对称性。分子中存在Mo—Mo单键,键长为3.222。异丙基的引入使得茂环与金属钼的键合加强。
The synthesis and structure of (η5-C5H4i-C3H7)2Mo2(CO)6 are reported here. The breaking of bond P-C would happen when C5H5C(CH3)2PPh2 reacted with Mo(CO)6. The crystal is tri-monoclinic, space group P1, with a=7. 548(2) ,b=8.662(1), c=8. 888(1) A, α=91.11(1), β= 106. 43(1), γ=92.59(1)°, V = 556. 48A3, Z=1, Dx= 1. 714gcm-3, R= 0.016,μ(MoKa) = 11. 33 cm-1, F(000) = 286. The structure was solved by direct methods (MUL-TAN82). The molecule has Ci symmetry, with the Mo-Mo single bond of 3. 322A. The coming of iso-propyl strengthens the cyclopentadienyl-molybdenum bonds.
基金
国家自然科学资金
