Crystal and molecular structure of bis(dimethylglyoximato)(imidazole)copper(II)

Autor:	Sheila M. Morehouse, Alexandra Polychronopoulou, Graheme J. B. Williams
Rok vydání:	1980
Předmět:	Inorganic Chemistry Bond length Crystallography chemistry.chemical_compound Molecular geometry chemistry Square pyramid Hydrogen bond Intramolecular force Imidazole Crystal structure Physical and Theoretical Chemistry Coordination geometry
Zdroj:	Inorganic Chemistry. 19:3558-3561
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic50214a002
Popis:	The solid-state structure of bis(dimethylglyoximato)(imidazole)copper (II) has been determined by x-ray crystallographic analysis. The compound crystallizes in the orthorhombic space group Pbca with unit cell dimensions a = 8.468 (1), b = 28.647 (4), and c = 12.413 (1) A. The strucutre was refined by full-matrix least-squares techniques to R = 0.043 and R/sub w/ = 0.065 against the full set of 3108 F/sup 2/ values. The coordination geometry of the copper atom is that of a distorted square pyramid with the four dimethylglyoximato nitrogens forming the basal plane at an average distance of 1.955 (3) A. The copper atom is displaced 0.353 (1) A from this plane toward the axial imidazole group. The Cu-N(imidazole) bond length is 2.141 (1) A. Two asymmetric O-H...O hydrogen bonds of lengths 2.524 (2) and 2.598 (2) A link the dimethylglyoximato moieties. An intermolecular (imidazole) N-H...O hydrogen bond is formed to the oxygen atom of the longer intramolecular hydrogen bond.
Databáze:	OpenAIRE
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