Structural consequences of hydroxamate and tropolonate binding to iron porphyrins

Abstract

The solid-state structures of iron porphyrin hydroxamate complexes reveal an unusual monodentate η¹-O binding mode; the bidentate η²-O,O binding of the tropolonate anion results in an apical displacement of iron of 0.80 Å from the 24-atom mean porphyrin plane.

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