Crystal and Molecular Structure of Benzylidenimine Tetrasulfide, (C6H5CHN)2S4

Abstract

The structure of the title compound has been determined. Crystals are monoclinic with space group P21/a, Z = 4, a = 13.83(1), b = 19.66(2), c = 5.983(5) Å, β = 101.4(1)°, dcalcd = 1.404, dobs = 1.40(1). A full-matrix least-squares refinement on 1085 unique reflections of positive intensity measure produced a conventional R of 0.066. The spiral arrangement of the S4 chains (nearly generating a 31 axis) is such that the two aromatic rings are eclipsed. Alternation in bond length along the sulfur chain was observed, the long inner bond being 2.083(4) Å and the shorter outer bonds averaging 2.026(3) Å in length. No intermolecular non-bonding interactions involving sulfur were found.