Control of electronic structure of a six-coordinate iron(III) porphyrin radical by means of axial ligands.
Addition of tert-butylisocyanide (tBuNC) to a CD2Cl2 solution of the bis(perchlorato)(meso-tetramesitylporphyrinato) iron(III) cation radical leads to the formation of the corresponding bis(adduct), [Fe(TMP)(tBuNC)2]2+, whose electronic structure is in sharp contrast to that of the corresponding imidazole(HIm) complex, [Fe(TMP)(HIm)2]2+; the former adopts the S = 0 while the latter exhibits the S = 1 electronic ground state.
Ikezaki
Akira
A
Department of Chemistry, Toho University, School of Medicine, Ota-ku, Tokyo 143-8540, Japan.
Tukada
Hideyuki
H
Nakamura
Mikio
M
D005290:Ferric Compounds / Q000737:chemistry*; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008665:Metalloporphyrins / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
D005290:Ferric Compounds; D008024:Ligands; D008665:Metalloporphyrins; D009570:Nitriles; C002990:butyl isocyanide