Crystal and molecular structures of cis- and trans-dichlorobispyridine-platinum(II)
Crystal and molecular structures of cis- and trans-dichlorobispyridine-platinum(II)
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顺式和反式二氯双吡啶铂(II)的晶体和分子结构
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
P. Orioli
中科院分区：
文献类型：
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作者：
P. Colamarino;P. Orioli
测定了顺式和反式二氯联吡啶铂(II)[(I)和(II)]的晶体结构。(I)为单斜晶系，C2/c空间群，a=9.408(5)，b=17.110(14)，c=15.270(7)A，β=98.53(4)°，Z=8；晶体属三斜晶系，P空间群，a=7.695(6)，b=7.091(5)，c=5.542(5)A，α=87.6(1)，β=83.7(1)，γ=79.3(1)°，Z=1。并经最小二乘法精化为R_(0.041)(I)和R_(0.068)(II)。这两个配合物都是由离散的铂分子组成的，表现出通常的方形-平面配位。最短的平均铂⋯铂距离为4.967(I)和5.542 A(II)。(I)分子的堆积方式类似于顺式[铂(NH3)2Cl2]，但较大的铂⋯铂距离排除了任何金属-金属相互作用。
The crystal structures of cis- and trans-dichlorobispyridineplatinum(II)[(I) and (II)] have been determined. Crystals of (I) are monoclinic, space group C2/c, with a= 9.408(5), b= 17.110(14), c= 15.270(7)A, β= 98.53(4)°, Z= 8; crystals of (II) are triclinic, space group P, with a= 7.695(6), b= 7.091 (5), c= 5.542(5)A, α= 87.6(1), β= 83.7(1), γ= 79.3(1)°, Z= 1. The structures were solved by heavy-atom techniques from 1 000 (I) and 1 032 (II) observed intensities, measured by diffractometer, and refined by least-squares methods to R 0.041 (I) and 0.068 (II).Both complexes consist of discrete molecules with platinum showing the usual square-planar co-ordination. Shortest mean Pt ⋯ Pt distances are 4.967 (I) and 5.542 A(II). Molecules of (I) pack in a manner similar to that of cis-[Pt(NH3)2Cl2], but the large Pt ⋯ Pt distances preclude any metal–metal interaction.