S. Licoccia et al., NOVEL NMR ASPECTS OF TERTIARY PHOSPHINE COMPLEXES OF RU(II) ETIOPORPHYRIN-I, Magnetic resonance in chemistry, 33(12), 1995, pp. 954-958
The synthesis and characterization of hexacoordinated ruthenium comple
xes of etioporphyrin I (EP) of general formula [(EP)RuL(2)] (L = teria
ry phosphine) and of the pentacoordinated complex [(EP)Ru(PPh(3))] are
reported. The multiplicity observed in the H-1 NMR spectra of complex
es is discussed on the basis of the steric interactions between the ax
ial ligands and the macrocycle.