Bis(nicotinamide-N)bis(salicylato-O,O')copper(II), the Monoclinic Form
摘要:
The monoclinic form of the title compound, [Cu(C7H5O3)(2)(C6H6N2O)(2)], was isolated during the systematic synthesis of copper salicylates. A distorted octahedral coordination around Cu-II, located on the centre of symmetry, is formed by four carboxylic O atoms from two salicylate ligands [Cu-O 1.928 (2) and 2.766 (2) Angstrom] and by two N atoms from two nicotinamide groups [Cu-N 2.022 (2) Angstrom]. Monomeric structural units are linked together via hydrogen bonds of the type N-H ... O between the N and O atoms of the nicotinamide ligands.