title: Synthesis and spectroscopic identification of a mu-1,2-disulfidodinickel complex.
abstract: Reduction of elemental sulfur by a monovalent nickel precursor leads to a trans-1,2-mu-disulfidodinickel(II) complex assigned based on a combination of advanced spectroscopic methods in conjunction with density functional theory calculations. The disulfido linkage is characterized by an intense optical S --> Ni charge transfer transition at 650 nm, which causes a significant distortion of the Ni(2)S(2) core along an isotope-sensitive v(S-S) mode at 474 cm(-1), as demonstrated by the resonance Raman excitation profile of this vibrational feature.
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: Katherine M
authors.initials: KM
authors.lastname: Van Heuvelen
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Brunold
authors.forename: Charles G
authors.initials: CG
authors.lastname: Riordan
mesh_terms: D004220:Disulfides / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013056:Spectrophotometry, Ultraviolet; D013059:Spectrum Analysis, Raman
chemical_list: C419508:(1,4,8,11-tetraazacyclotetradecane)nickel(ii) perchlorate; D004220:Disulfides; D009942:Organometallic Compounds; D009532:Nickel