Six-coordinate [CoIII(L)2]z (z = 1−, 0, 1+) complexes of an azo-appended o-aminophenolate in amidate(2−) and iminosemiquinonate π-radical (1−) redox-levels: the existence of valence-tautomerism

Abstract

Synthesis and structural (molecular and electronic) analysis for [Co^III{(L^AP)(L^ISQ)}˙³⁻] (1, S = 1/2), [Co^III{(L^ISQ)˙⁻}₂][PF₆]·2CH₂Cl₂ (2, S = 0) and [Co^III(η⁵-C₅H₅)₂][Co^III{(L^AP)²⁻}₂]·MeCN (3, S = 0) have been done.