title: Identification of an "end-on" nickel-superoxo adduct, [Ni(tmc)(O2)]+.
abstract: An "end-on" Ni2+-superoxo adduct has been prepared via two independent synthetic routes and its structure ascertained by spectroscopic and computational methods. The new structure type in nickel coordination chemistry is supported by resonance Raman and EPR spectroscopic features, the former displaying a high frequency nu (O-O) mode (1131 cm-1) consistent with significant superoxo character. The Ni2+-superoxo adduct oxidizes PPh3 to OPPh3 in quantitative yield.
authors.affiliation: Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Kieber-Emmons
authors.forename: Jamespandi
authors.initials: J
authors.lastname: Annaraj
authors.forename: Mi Sook
authors.initials: MS
authors.lastname: Seo
authors.forename: Katherine M
authors.initials: KM
authors.lastname: Van Heuvelen
authors.forename: Takehiko
authors.initials: T
authors.lastname: Tosha
authors.forename: Teizo
authors.initials: T
authors.lastname: Kitagawa
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Brunold
authors.forename: Wonwoo
authors.initials: W
authors.lastname: Nam
authors.forename: Charles G
authors.initials: CG
authors.lastname: Riordan
mesh_terms: D006571:Heterocyclic Compounds / Q000737:chemistry*; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013481:Superoxides / Q000737:chemistry*
chemical_list: D006571:Heterocyclic Compounds; D009942:Organometallic Compounds; D013481:Superoxides; D009532:Nickel; D010100:Oxygen