Hexacarbonyl complexes of dirhenium(I) containing E2Ph4(E = P, As, or Sb) ligands; X-ray crystal structure of [Re2Br2(CO)6(Sb2Ph4)]
作者:Ivan Bernal、James D. Korp、Fausto Calderazzo、Rinaldo Poli、Dario Vitali
DOI:10.1039/dt9840001945
日期:——
The E2Ph4 complexes of rhenium(I), [Re2X2(CO)6(E2Ph4)](X = Br, E = As or Sb; X = I, E = P, As, or Sb), have been prepared by the reactions of [Re2Br2(CO)6(thf)2](thf = tetrahydrofuran) or [Re2I2(CO)8] with the appropriate E2Ph4. The crystal and molecular structure of one of the compounds, namely [Re2Br2(CO)6(Sb2Ph4)], has been solved by X-ray diffraction methods. The crystals are monoclinic, space
2(I),[Re 2 X 2(CO)6(E 2 Ph 4)]的E 2 Ph 4配合物(X = Br,E = As或Sb; X = I,E = P,As或Sb),是通过[Re 2 Br 2(CO)6(thf)2 ](thf =四氢呋喃)或[Re 2 I 2(CO)8 ]与适当的E 2 Ph 4反应制备的。一种化合物[Re 2 Br 2(CO)6(Sb 2)的晶体和分子结构Ph 4)],已经通过X射线衍射法解决。该晶体是单斜晶系,空间群P 2 1 / Ñ,具有一个= 16.585(8),b = 22.036(13),C ^ = 19.764(19)A,β= 109.34(6)°,并ž = 8数据收集得到2 197个观察到的反射,R = 0.040。该分子由两个通过溴化物和Sb 2 Ph 4桥连接的伪八面体rh(I)中心组成。平均距离包括Re–Br 2.663(4),Sb – Br 3.640(3),Re→Re