Air oxidation-induced single-crystal-to-single-crystal transformation of mixed-valence tetranuclear Fe(II)-Fe(III) complexes

Dalton Trans. 2022 Oct 4;51(38):14429-14433. doi: 10.1039/d2dt02551e.

Abstract

A mixed valence tetranuclear iron complex [(Hpmide)FeII(NCSe)2FeIII(pmide)]2·5CH3OH (1) underwent oxidation and ligand exchange in the solid state (H2pmide = N-(2-pyridylmethyl)iminodiethanol). Upon air oxidation, 1 was converted into [(pmide)FeIII(NCSe)FeIII(pmide)]2(NCSe)2·2H2O (2), which was accompanied by deprotonation and ligand exchange through a single crystal-to-single-crystal transformation.