The First Reaction of S5N6; Structure of a Complex Containing an S2N Ligand

A new pattern of SN bond lengths is found in the anion of (PPh4)[PdCl2(S2N3)] (see structure shown), the product of the reaction of explosive S5N6 with (PPh4)2[Pd2Cl6]. The distances between sulfur and bridgehead N atoms average 1.604 Å and between sulfur and metal-coordinated N atoms 1.486 Å; the latter bond lengths are among the shortest known in M-S-N rings.