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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Structural and spectroscopic studies of transition metal nitrite complexes. I. Crystal structures and spectra of trans-Bis(ethane- 1,2 diamine)dinitronickel(II), trans-Bis[N, N-dimethyl(ethane- 1,2-diamine)]dinitritonickel(II) and trans-bis[N,N'-dimethyl(ethane-1,2 diamine)]dinitronickel(II) monohydrate

AJ Finney, MA Hitchman and CL Raston

Australian Journal of Chemistry 34(10) 2047 - 2060
Published: 1981

Abstract

The crystal structures of the trans complexes bis(ethane-1,2-diamine)dinitronickel(II) (1), bis[N,N-dimethyl(ethane-1,2-diarnine)]dinitritonickel(II) (2) and bis[N,N'-dimethyl(ethane-1,2-diamine)]dinitronickel(II) monohydrate (3) are described, (1) and (2) being redeterminations of previously reported structures. The complexes formed by the substituted amines have significantly different geometries, both in the manner of coordination of the nitrite ligands, and in the conformations adopted by the diamine chelate rings. These differences can be explained in terms of the particular steric requirements of the amine substituents. The changes in nitrite geometry which occur upon coordination, and the spectroscopic properties of the complexes are discussed.

https://doi.org/10.1071/CH9812047

© CSIRO 1981

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