The Vibrational Spectra and Structure of Nitrogen Tetrasulfide

Abstract

The infrared and Raman spectra of nitrogen tetrasulfide (N₄S₄) are presented along with the infrared spectrum of nitrogen hydrogen sulfide (N₄S₄H₄). These data have been considered in terms of the several proposed structures for nitrogen tetrasulfide and have been found to be consistent with a cage structure of D_2d symmetry. With the aid of a normal coordinate analysis of the nondegenerate symmetry species, a complete assignment of frequencies to their normal modes of vibration has been made for nitrogen tetrasulphide. A tentative assignment of frequencies is also given for nitrogen hydrogen sulfide.