MOLECULAR HELICITY IN INORGANIC COMPLEXES - THE CRYSTAL AND MOLECULAR-STRUCTURE OF 2,6-DIACETYLPYRIDINE BIS(6-CHLORO-2-PYRIDYLHYDRAZONE) SILVER(I) HEXAFLUOROPHOSPHATE DIMER

被引:31
作者
CONSTABLE, EC
HOLMES, JM
RAITHBY, PR
机构
[1] University Chemical Laboratory, Cambridge, CB2 1 EW, Lensfield Road
关键词
D O I
10.1016/S0277-5387(00)83560-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The crystal and molecular structure of the complex [Ag2L12][PF6]2 [L1 = 2,6-diacetylpyridine bis(6-chloro-2-pyridylhydrazone)] have been determined. The cation is binuclear with each silver in a distorted four-coordinate environment, showing weak interactions with a fifth ligand and with a short Ag-Ag distance of 3.142 angstrom. The two equivalent ligands are wrapped around the binuclear core in a double-helical array. This is stabilized by pi-stacking interactions between parallel pyridyl rings. The double-helical array is generated in a spontaneous self-assembly process which is dictated by the relative acceptor properties of the silver(I) ion and the donor properties of the ligand.
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页码:127 / 132
页数:6
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