Bis(pyridine-2-carboxylato-κ2N,O)copper(II)]–benzene-1,3,5-tricarboxylic acid–water (1/2/2)

Abstract

In the title complex, [Cu(C6H4O2N)2]·2C9H6O6·2H2O, the Cu2+ ion lies on a center of inversion and coordinates with symmetry related pyridine nitrogen and carboxyl oxygen atoms from two pyridine-2-carboxylic acid anions, giving rise to a square-planar coordination geometry. There are weak axial bonds between Cu and an O atom of a symmetry-related trimesic acid moieties [Cu...O = 2.837 (2) Å] The Cu...O weak interactions and hydrogen bonds stabilize the whole structure.

Keywords

• crystal structure
• mixed ligands coordination polymer
• copper carboxylates
• hydrogen bond