title: Dicationic sulfur analogues of N-heterocyclic silylenes and phosphenium cations.
abstract: DABling with sulfur: Sulfur(II) dications can be prepared using alpha-diimines to stabilize the positive charge (see scheme; DAB = diazabutadiene, Dipp = 2,6-diisopropylphenyl, OTf = CF(3)SO(3)). The bonding is best described as that of a N,N-chelated sulfur(II) dication; these species represent the first sulfur-based structural mimics of N-heterocyclic silylene compounds and phosphenium cations.
authors.affiliation: Department of Chemistry, The University of Western Ontario, 1151 Richmond St., London, ON, N6A 5B7, Canada.
authors.forename: Caleb D
authors.initials: CD
authors.lastname: Martin
authors.forename: Michael C
authors.initials: MC
authors.lastname: Jennings
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Ferguson
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Ragogna