Electron paramagnetic resonance studies on copper(II) benzoate

Abstract

An electron paramagnetic resonance (e.p.r.) study at 9.1 and 12.0 GHz on polycrystalline copper(II) benzoate has given the following Spin Hamiltonian parameters for the binuclear molecule: D = 0.3311 ± 0.0006 cm −1 , E = 0.0147 ± 0.0003 cm −1 , g x = 2.048 ± 0.004, g y = 2.074 ± 0.004, g z = 2.345 ± 0.004. Using the average g value of 2.160 ± 0.004 obtained from e.p.r. and previously published magnetic susceptibility studies, 2J is estimated to be 333 cm −1 .