The Crystal Structure of a Novel Copper(II) Complex with Asymmetric Ligand Derived from l-Histidine
- 16 October 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 42 (23) , 7366-7368
- https://doi.org/10.1021/ic034760x
Abstract
The crystal structure of a novel copper(II) complex with a potentially hexaclentate Schiff base ligand derived from L-histidine has been solved by a single-crystal X-ray diffraction method at pH 7.4. The copper(II) ion is coordinated asymmetrically by a tetradentate ligand with the amino and imidazole imido nitrogen atoms on one side versus imino nitrogen and carboxylate oxygen atoms on the other side in a distorted square-planar geometry. The formation of an infinite chain through carboxylate coordination is observed. The novel ligand is obtained by the reaction between the L-histidine molecules coordinated to copper(II) and 4-hydroxy-4-methylpentan-2-one formed by aldol condensation of acetone. This complex provides insights into a possible structural arrangement between copper(II) and L-histidine which is physiologically important and abundantly present in biological systems.This publication has 25 references indexed in Scilit:
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