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    Electronic Resource
    Electronic Resource
    A π-acceptor series for phosphines from51V N.M.R. data on [η5-CpV(CO)3L] complexes (1976)
    Springer
    Transition metal chemistry 1 (1976), S. 74-76 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Qualitative molecular orbital considerations of the complexes [η5-CPV(CO)3 L] (L = substituted phosphane, SbPh3, AsPh3, CN−) suggest that s' V chemical shift parameters (τ) obtained for these compounds should correlate with the π-acceptor abilities of L. Based on observed r-values, the ligands are arranged in sequence of their π-acceptor ability, which lies in the order P(OR)3 〉 CN− 〉 PR'33 ∼ SbPh3 ∼ PPhF2 〉 P(i-Bu)3 ∼ P(NR 2 ″ )3 〉 PPh3 〉 AsPh3 Nuclear spin-spin coupling constants J (51V-31 P), line widths Δ H and i.r. data in the ν(CO) region are also presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01385946
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