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- W2010756837 abstract "U.V. photoelectron spectra (He I and He II) and 13C NMR spectra of M(CO)5PR3 (M = Cr, W, and R = C6H11, C6H5, O-i-C3H7, OC6H5) are presented and assigned by comparison with the spectra of free PR3 and M(CO)6. From the PE spectra it could be deduced that σ-donor properties increased in the order PX3 (X = F, Cl, Br) < P(OC6H5)3 < P(O-i-C3H7)3 < P(C6H5)3 < P(C6H11)3 opposite to the π-acceptor properties. Backbonding to a P-donor ligand is stronger than to a pyridine-like ligand. It is shown that σ-interaction in Cr(CO)5L is weaker than in the previously published Fe(CO)4L compounds and that the splitting of the iron e′ and e″ orbitals is not a good parameter for π-backbonding. 13C carbonyl resonances are correlated with the σ-donor/π-acceptor properties of the ligand, whereas in non aromatic PR3 ligands the 13C resonances are related qualitatively to the reduction of electron density on complexation." @default.
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- W2010756837 title "U.V.-photoelectron (He I and He II) studies of M(CO)5PR3 (M = Cr, W and R = C6H11, C6H5, O-i-C3H7, OC6H5) and W(CO)5As(C6H5)3" @default.
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- W2010756837 doi "https://doi.org/10.1016/s0020-1693(00)91937-6" @default.
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