EPR and Mössbauer Spectra of Iron (III) N, N-Dimethyldithiocarbamate

The EPR and Mössbauer spectra have been measured at 4.2°K for samples of iron (III) N, N-dimethyldithiocarbamate diluted in cobalt (III) N, N-dimethyldithiocarbamate. g values close to 2 and an isotropic hyperfine interaction were observed. The results indicate that the ferric atom occupies a site of almost cubic symmetry. The orbital ground state consists of approximately equal amounts of | xz〉 and | yz〉 holes with slightly less of |xy〉. The value of the observed magnetic hyperfine field at the nucleus (300 ± 5 kG) is in agreement with that predicted.