Author:
Finney AJ,Hitchman MA,Raston CL
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.
Cited by
53 articles.
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