Band structure of polymeric sulfur nitride

Using the Extended Huckel Method, a band structure calculation of polymeric sulfur nitride based on X-ray crystallographic data has been carried out. The results of the calculation suggest that the metallic properties of (SN)_x arise from the accidental overlap of non-symmetry related segments of an anisotropic three dimensional band structure. Our results are similar to those obtained by other investigators using a different crystal structure.