M. Guillemot et G. Simonneaux, NMR-STUDIES OF THE ELECTRONIC-STRUCTURE OF LOW-SPIN IRON(III) PHOSPHONITE COMPLEXES - UNUSUAL (D(XZR)D(YZ))(4)(D(XY))(1) CONFIGURATION, Journal of the Chemical Society, Chemical Communications, (20), 1995, pp. 2093-2094
Complexation of dimethylphenylphosphonite to (5,10,15,20-tetraphenylpo
rphyrinato)iron(III) yields a low-spin derivative [Fe(tpp){P(OMe)(2)Ph
}(2)]ClO4, showing NMR and EPR properties consistent with an iron(III)
ion in the unusual ground-state configuration (d(xz),d(yz))(4) (d(xy)
)(1).