A revision of the structure of (bipyridyl-N,N')dicyanoplatinum(II)

被引:38
作者
Connick, WB [1 ]
Henling, LM [1 ]
Marsh, RE [1 ]
机构
[1] CALTECH,BECKMAN INST,PASADENA,CA 91125
来源
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 1996年 / 52卷
关键词
D O I
10.1107/S0108768196002674
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In a previous X-ray crystallographic study of crystals of Pt(bpy)(CN)(2) (bpy=2,2'-bipyridine) the planar molecules were reported to be exactly eclipsed, stacked directly on top of one another with a spacing of 3.33 Angstrom so as to form a linear Pt...Pt...Pt chain. A reinvestigation shows this structure to be incorrect. The presence of weak intermediate layer lines indicates that the repeat distance along the stacking direction is 6.66 Angstrom rather than 3.33 Angstrom. Successive molecules within the stack are rotated by 180 degrees and the resulting Pt-atom chain is slightly zigzag with a Pt...Pt...Pt angle of 168.6(1)degrees. The implications are discussed of the determination and refinement of an apparently satisfactory, although grossly wrong, structure that was based on an incorrect unit cell and an incorrect space group.
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页码:817 / 822
页数:6
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