Temperature effects on structure: Six-coordinate [Fe(TPP)(1-MeIm)(CO)]

Abstract

We have examined the effects of changing the temperature on the structure of a six-coordinate (tetraphenylporphinato)iron(II) complex, [Fe(TPP)(1-MeIm)(CO)] C[Formula: see text]H[Formula: see text]. In particular, we examined whether the coordination group parameters, [Formula: see text]. the Fe–C and C–O parameters showed any effects. The study, carried out between 100 and 330 K, revealed no effect on those coordination group parameters. The axial Fe–N(Im) bond distance showed a small effect. The peripheral phenyl groups show a somewhat larger bond distance effect with bond distance increases of 0.02 to 0.03 Å. The population of the disordered solvent molecule favors one site as the temperature is lowered.