Synthesis, Structure, and Spectroscopic Properties of [Feiii (tnpa)(OH)(PhCOO)]ClO4 : A Model Complex for an Active Form of Soybean Lipoxygenase-1.

The cis configuration between the hydroxo and the carboxylato and the three amino groups of the tetradentate, tripodal ligand tris(6-neopentylamino-2-pyridylmethyl)amine favors the formation of hydrogen bonds which stabilize the hydroxo-Feiii complex 1. Thus, its structure closely resembles that of the active center of Feiii -soybean lipoxygenase-1, which also contains a six-coordinate Feiii atom.