Magnetic properties of cadmium copper tetrachloride tetrahydrate

Abstract To simulate an infinite chain, the magnetization and magnetic susceptibility of a closed chain of up to 14 spin - 1 2 were calculated in order to determine the exchange coupling between the copper ions in [CuCl2(H2O)2{CdCl2}]·2H2O. These simulations lead to an antiferromagnetic exchange-coupling value J/kB=−9.8±0.2 K. The variation of Curie–Weiss temperature with the exchange-coupling constant was also obtained and fitted to an expression θ(K)=a(J/kB)2+b(J/kB). The values of a and b were found to be 0.0112 and 0.465, respectively. The Lande factors gxx=2.29±0.01, gyy=2.42±0.01, and gzz=2.14±0.01 were obtained from room temperature electron paramagnetic resonance measurements.