Molecular structure of trans-[Co(NH3)4(NH2CH3)Cl](ClO4)2

被引：2

作者：

Benzo, F

Sienra, B

Piro, OE

机构：

[1] Natl Univ La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina

[2] CONICET, Program PROFIMO, RA-1900 La Plata, Argentina

[3] Fac Quim, Montevideo, Uruguay

来源：

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY | 1998年 / 28卷 / 01期

关键词：

Co(III) complex; crystal structure; kinetics; steric effects;

D O I：

10.1023/A:1021786804676

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The title compound crystallizes in the orthorhombic space group Pnma, with a = 7.9209(5), b = 9.818(1), c = 16.867(2) Angstrom, and Z = 4. The structure was solved employing 1864 independent x-ray reflections with I > 2 sigma(I) by Patterson and difference Fourier techniques and refined by full-matrix least-squares to R = 0.036. The trans-[CO(NH3)(4)(NH2CH3)Cl](ClO4)(2) molecule is on a crystallographic mirror plane. The cobalt ion is in an elongated octahedral coordination with four equatorial ammonia ligands [average Co-N distance equal to 1.966(2) Angstrom], an axial methylamine [Co-N = 1.965(3) Angstrom] and an axial chlorine ion [Co-Cl = 2.2771(9)Angstrom]. Kinetic steric effects of the complex are interpreted in terms of structural results.

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页码：69 / 72

页数：4

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