Spin distributions in inorganic heterocyclic radicals; generation and e.s.r. characterization of the 1,3,2,4,6-thiaphosphatriazinyl [Ph2P(Ph)CN3S]·

Abstract

The reaction of (Me₃SiN)Ph₂PN(Ph)C(NSiMe₃)₂ with sulphur dichloride affords the 1,3,2,4,6-thiaphosphatriazine Ph₂P(Ph)CN₃SCl which, upon reduction with triphenylantimony, yields the corresponding thiaphosphatriazinyl radical [Ph₂P(Ph)CN₃S]·; the e.s.r. spectrum of this radical reveals a spin distribution heavily localized over the (P)–N–S region of the ring.