Synthesis and characterization of iron trisphenolate complexes with hydrogen-bonding cavities

Inorg Chem. 2014 Mar 17;53(6):2763-5. doi: 10.1021/ic5002286. Epub 2014 Mar 3.

Abstract

A new family of C3-symmetric ligands, featuring phenolate donors and a secondary coordination sphere, have been synthesized. We report the synthesis and subsequent coordination chemistry of these new tripodal N-anchored tris(phenolate) chelates, [tris(5-tert-butyl-3-N-carboxamide-2-hydroxybenzyl)amines] (H3(R)SalAmi), to iron(II), iron(III), and zinc(II). These electron-rich complexes have intramolecular hydrogen bonds, and therefore the potential to stabilize biologically relevant substrates in small-molecule activation chemistry.