Crystal Structure and Characterization of a New Eight Coordinated Cadmium Complex

Abstract

In this work, a new cadmium complex (Cd(L)(CH3COO)2).2H2O (1) with the ligand L, N,N´-bis(2-pyridinecar- boxalidene)-1,2-cyclohexanediamine was prepared and identified by elemental analysis, FT-IR, Raman, 1 H NMR spectroscopy and single-crystal X-ray diffraction. The cadmium atom in the crystal structure of 1 has distorted triangular dodecahedral geome- try by coordination of the four nitrogen atoms of L and four oxygen atoms of the two acetate ions. Two water molecules are also incorporated in the crystal network. The O-H···O hydrogen bonds present in the crystal structure of 1. In this work, three structural surveys including coordination numbers of the cadmium atom, coordination modes of L and resonance in pyridine- 2-ylmethanimine-based compounds are presented.