Coordination of carboxamido nitrogen to tervalent iron: insight into a new chapter of iron chemsitry

摘要

Although coordination of carboxamido nitrogen to Fe(III) center has been assumed to be improbable, research work during the past few years has demonstrated that Fe(III) complexes with ligated carboxamido nitrogens can be readily synthesized. The Fe(III)-N_amido bond distances lie in the range of 1.8-2.2 A in the various low spin and high spin Fe(III) complexes. These complexes are stable in aqueous media and their redox parametes inducate that the carbox-amido nitrogens provide signficant stability to the Fe(III) center.