The distance between the sulfur atoms is signifi cantly shorter than the sum of the van der Waals radii
(~330 pm), so some interaction between the sulfur atoms is indicated. However, the typical S – S single
bond distance is approximately 210 pm, so the interaction is weak. The structure involves several resonance structures, some of which are shown as follows (the unshared pairs of electrons on N and S are
omitted):