Assignment of the n.m.r. spectrum of iron(III) protoporphyrin IX dicyanide using paramagnetic shift and broadening probes

Abstract

Specific assignments of the paramagnetically shifted porphyrin ring proton resonances in the n.m.r. spectrum of iron(III)protoporphyrin IX dicyanide have been made by consideration of the perturbations induced in the spectrum by paramagnetic shift and relaxation probes.