Trigonal propeller-shaped [MnIII3MIINa] complexes (M = Mn, Ca): structural and functional models for the dioxygen evolving centre of PSII

Abstract

Two new polynuclear heterometallic cluster complexes with [Mn(III)(3)M(II)Na] (M = Mn, Ca) core were synthesized using two in situ formed Schiff bases. The compounds were structurally characterized by single crystal X-ray analysis. The compound with [Mn(III)Ca(II)Na] appeared to catalyse water oxidation which was followed by using Clark electrode and online mass spectrometry.