X-RAY STRUCTURE AND CONFORMATIONAL-ANALYSES OF COBALT(III) COMPLEXES CONTAINING 1,3-PROPANEDIAMINE AND 1,4-BUTANEDIAMINE

被引：9

作者：

KURACHI, S ^{[1
]}

OHBA, S ^{[1
]}

机构：

[1] KEIO UNIV, FAC SCI & TECHNOL,DEPT CHEM,3-14-1 HIYOSHI, KOHOKU KU, YOKOHAMA, KANAGAWA 223, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1992年 / 65卷 / 11期

关键词：

D O I：

10.1246/bcsj.65.3033

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystal structures of octahedral cobalt(III) complexes containing diamines, NH2 (CH2)n NH2 with n=3 or 4 (abbreviations are tn and tmd, respectively), were determined by X-ray analysis. In crystals of [Co(tn)(tmd)2] Cl3, (1), the tn chelate ring takes skew-boat form, and the conformation of the complex is lel lel2. In crystals of [Co(tn)2(tmd)]Br3 . 2.7H2O, (2), both two independent complex cations take syn-chair2 lel configuration. Molecular mechanics calculation indicated that the six-membered tn chelate ring may take skew-boat form in a crowded system to reduce the steric repulsions between the chelate rings, although the tn chelate ring originally prefers the chair form.

引用

页码：3033 / 3041

页数：9

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