Donor-Acceptor Properties of the Methyl Cyanide and Methyl Isocyanide Ligands Towards the Fragment CpFe(dppe)<sup>+</sup>
作者:C. Díaz、N. Yutronic
DOI:10.1080/00945719708000187
日期:1997.1
The complexes [CpFe(dppe)NCCH3]PF6 and [CpFe(dppe)CNCH3]PF6, Cp = eta(5)-C5H5, dppe = Ph(2)P(CH2)(2)PPh(2), have been prepared and characterized. IR, H-1 and P-31 NMR and UV-Visible spectroscopic data suggest sigma-donor behavior for the nitrile and pi acceptor behaviour for the isonitrile ligands towards the iron fragment. Cyclic voltammetry studies of the complexes confirmed such conclusion.