title: Diverse reactions of PhI(OTf)2 with common 2-electron ligands: complex formation, oxidation, and oxidative coupling.
abstract: The crystal structures of bis-pyridine stabilized iodine dications [PhI(pyr)(2)](2+) are reported as triflate salts, representing the first ligand supported iodine dications to be structurally characterized. The pyridine complexes are susceptible to ligand exchange in reaction with stronger N-based donors such as 4-dimethylaminopyridine. Attempts to extend this reactivity to N-heterocyclic carbene and phosphine ligands, as has been accomplished in the earlier p-block groups, resulted in redox chemistry, with oxidation of the ligands rather than coordination.
authors.affiliation: Department of Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia 3086.
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Pell
authors.forename: Shannon A
authors.initials: SA
authors.lastname: Couchman
authors.forename: Sara
authors.initials: S
authors.lastname: Ibrahim
authors.forename: David J D
authors.initials: DJ
authors.lastname: Wilson
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Smith
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Barnard
authors.forename: Jason L
authors.initials: JL
authors.lastname: Dutton