Preparation and crystal and molecular structure of mer-trichlorotris(dimethylphenylphosphine)technetium(III)
作者:Giuliano Bandoli、Dore A. Clemente、Ulderico Mazzi
DOI:10.1039/dt9760000125
日期:——
The crystal and molecular structure of the title compound has been determined from single-crystal X-ray diffractometer data by Fourier methods and refined by anisotropic block-diagonal least-squares to R 0.054 for 4 065 independent observed reflections. Crystals are monoclinic, space group P21/n, with cell parameters a= 10.935(9), b= 39.191(11), c= 13.738(7)Å, β= 107.33(7)°, and Z= 8. The two crystallographically
标题化合物的晶体和分子结构已通过傅立叶方法由单晶X射线衍射仪数据确定,并通过各向异性嵌段对角最小二乘法对4 065个独立观察到的反射精制为R 0.054。晶体是单斜晶,空间群P 2 1 / n,晶胞参数a = 10.935(9),b = 39.191(11),c = 13.738(7)Å,β= 107.33(7)°,Z=8。两个在晶体学上独立的分子在立体化学上是等价的(苯环的取向只有很小的差异),并且金属原子的八面体配位有些扭曲,两对相似的配体相互反式。lig-配体键的距离为:Tc-Cl(反式至P)2.46(1),Tc-Cl(反式至Cl)均为2.33(1),Tc-P(反式至Cl)2.42(1)和Tc-P (转换为P)均为2.47(1)Å。讨论了膦配体对Tc-Cl键的明显反式影响。