Copper azine compounds: Synthesis, structure and magnetic analyses of Cu(phenazine)Cl2, (phenazinium)2CuCl4·H2O, and [Cu(phenazine)Cl2·H2O]2
摘要:
Three compounds composed of phenazine and copper chloride have been prepared and studied by infrared spectroscopy, X-ray diffraction, and variable temperature magnetization. The compounds synthesized and studied are: Cu(phenazine)Cl-2 (1), (phenazinium)(2)-CuCl4 center dot H2O (2), and [Cu(phenazine)Cl-2 center dot H2O](2) (3). Compounds 1 and 2 are described as antiferromagnetic Heisenberg chains with exchange constants vertical bar J vertical bar/k(B) = 33.8 K and 8.6 K, respectively. (c) 2006 Elsevier Ltd. All rights reserved.