title: Synthesis, NMR spectroscopic characterization and structure of a divinyldisilazane-(triphenylphosphine)platinum(0) complex: observation of isotope-induced chemical shifts (1)Δ(12/13)C((195)Pt).
abstract: Tetramethyldivinyldisilazane-(triphenylphosphine)platinum(0) was prepared, characterized in solid state by X-ray crystallography and in solution by multinuclear magnetic resonance spectroscopy ((1)H, (13)C, (15)N, (29)Si, (31)P and (195)Pt NMR). Numerous signs of spin-spin coupling constants were determined by two-dimensional heteronuclear shift correlations (HETCOR) and two-dimensional (1)H/(1)H COSY experiments. Isotope-induced chemical shifts (1)Δ(12/13)C((195)Pt) were measured from (195)Pt NMR spectra of the title compound as well as of other Pt(0), Pt(II) and Pt(IV) compounds for comparison. In contrast to other heavy nuclei such as (199)Hg or (207)Pb, the "normal" shifts of the heavy isotopomers to low frequencies are found, covering a range of >500 ppb.
authors.affiliation: Anorganische Chemie II, Universität Bayreuth, D-95440, Bayreuth, Germany. b.wrack@uni-bayreuth.de
authors.forename: Bernd
authors.initials: B
authors.lastname: Wrackmeyer
authors.forename: Elena V
authors.initials: EV
authors.lastname: Klimkina
authors.forename: Thomas
authors.initials: T
authors.lastname: Schmalz
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Milius
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002247:Carbon Isotopes; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D015394:Molecular Structure; D009944:Organoplatinum Compounds / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D012015:Reference Standards
chemical_list: D002247:Carbon Isotopes; D009944:Organoplatinum Compounds; D010984:Platinum; D002244:Carbon