Gallium(III)-substituted P-450 models, [Ga(OEP)(SAr)] (OEP = octaethyl
porphinato; SAr = S-2-CF3CONHC6H4, SPh), were synthesized and the stru
ctures were determined by X-ray analysis. The gallium(III) complexes w
ere found to be excellent structural analogues having a diamagnetic me
tal center.