title: Utility of a redox-active pyridine(diimine) chelate in facilitating two electron oxidative addition chemistry at uranium.
abstract: Exposure of the uranium(IV) complex, Cp(P)U((Mes)PDI(Me)) (1) ((Mes)PDI(Me) = 2,6-((Mes)N=CMe)2–C5H3N; Mes = 2,4,6-trimethylphenyl; Cp(P) = 1-(7,7-dimethylbenzyl)cyclopentadienyl), which contains a [(Mes)PDI(Me)](3−) chelate, to I2, Cl2, PhSeCl, and PhEEPh (E = S, Se, Te) results in oxidative addition to form the uranium(IV) family, Cp(P)U(XX′)((Mes)PDI(Me)) (X = X′ = I, Cl, EPh; X = SePh, X′ = Cl). Spectroscopic and structural studies support products with [(Mes)PDI(Me)](1−), indicating the reducing equivalents derive from this redox-active chelate.
authors.affiliation: H.C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA. sbart@purdue.edu.
authors.forename: John J
authors.initials: JJ
authors.lastname: Kiernicki
authors.forename: Phillip E
authors.initials: PE
authors.lastname: Fanwick
authors.forename: Suzanne C
authors.initials: SC
authors.lastname: Bart