Heterometallic triiron-oxo/hydroxo clusters: effect of redox-inactive metals.

Reduction potentials of heterometallic manganese-oxido cubane complexes modulated by redox-inactive metals.

Understanding the effect of redox-inactive metals on the properties of biological and heterogeneous water oxidation catalysts is important both fundamentally and for improvement of future catalyst designs. In this work, heterometallic manganese-oxido cubane clusters [MMn3O4] (M = Sr(2+), Zn(2+), Sc(3+), Y(3+)) structurally relevant to the oxygen-evolving complex (OEC) of photosystem II were pre...

Redox-Inactive Metals Modulate the Reduction Potential in Heterometallic Manganese-Oxido Clusters

Redox-inactive metals are found in biological and heterogeneous water oxidation catalysts, but, at present, their roles in catalysis are not well understood. Here, we report a series of high-oxidation-state tetranuclear-dioxido clusters comprising three manganese centres and a redox-inactive metal (M). Crystallographic studies show an unprecedented Mn3M(µ4-O)(µ2-O) core that remains intact on c...

Undecametallic and hexadecametallic ferric oxo-hydroxo/ethoxo pivalate clusters.

Synthesis strategies for highly condensed {Fe11} and {Fe16} pivalate clusters have been developed based on archetypal geometrically frustrated triangular {Fe3(μ3-O)} motifs that are interlinked via oxo, hydroxo, ethoxo, and carboxylate groups.

A mononuclear non-heme manganese(IV)-oxo complex binding redox-inactive metal ions.

Redox-inactive metal ions play pivotal roles in regulating the reactivities of high-valent metal-oxo species in a variety of enzymatic and chemical reactions. A mononuclear non-heme Mn(IV)-oxo complex bearing a pentadentate N5 ligand has been synthesized and used in the synthesis of a Mn(IV)-oxo complex binding scandium ions. The Mn(IV)-oxo complexes were characterized with various spectroscopi...

Oxo / Hydroxo Clusters of the Lanthanides for Potential Photonic and Magnetic Applications