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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Phosphido Complexes. VII. Ring Size Effects within the N.M.R. Data of Transition Metal Phosphorus Four- and Six-membered Ring ComplexesComparing the corresponding n.m.r. data of [cpNiPH2]2 1 and [cpNiPH2]3 2, of [(CO)4MnPH2]2 3 and [(CO)4MnPH2]3 4, and of [(CO)4MnPF2]2 5 and [(CO)4MnPF2]3 6, respectively, it is shown that mainly the coupling constant between the phosphorus nuclei JPMP (M = Ni, Mn) and all chemical shift values are strongly influenced by the ring size. The relevant coupling constants between the nuclei 1H, 31P, and 19F have been obtained using computer simulations of the corresponding higher order spin systems.
    Notes: Ein Vergleich entsprechender NMR-Daten von [cpNiPH2]2 1 und [cpNiPH2]3 2, von [(CO)4MnPH2]2 3 und [(CO)4MnPH2]3 4 sowie von [(CO)4MnPF2]2 5 und [(CO)4-MnPF2]3 6 zeigt, daß besonders die Kopplungskonstante der Phosphorkerne untereinander JPMP (M = Ni, Mn) sowie sämtliche chemischen Verschiebungen stark von der Ringgröße beeinflußt werden. Die relevanten Kopplungskonstanten zwischen den Kernen 1H, 31P und 19F wurden durch Computersimulation der entsprechenden Spinsysteme höherer Ordnung ermittelt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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