Manganese complexes supramolecular

A manganese bis(acetylacetonato)-ethylenediamine complex was employed in the preparation of supramolecular assemblies with an octahedral niobium cyanochloride cluster, [Nb6Cli2(CN)6] . These assemblies range in size from 1.5 to 2.4 nm and their charge varies between —3 and +2, depending on the number of Mn units per cluster. 

M. L. Merlau, W. J. Grande, S. T. Nguyen, J. T. Hupp, Enhanced activity of manganese(III) porphyrin epoxidation catalysts through supramolecular complexation, /. Mol. Catal. A. Chem. 156 (2000) 79. 

The first example of chiral tetranuclear supramolecular assembly 5.27 was reported by Saalfrank and coworkers in 1988. Thus the complex [(NH3)4n(Mg (22)5] (5.27) was obtained by serendipity upon treatment of the doubly bidentate ligand 22, which is formed in situ from malonic ester and oxalyl chloride, with MeMgl in aqueous ammonium chloride solution (Scheme 5.13). Later an improved one-pot reaction was used to prepare such tetrahedral complexes of magnesium, manganese, cobalt and nickel by treating the bis(chelate) ligand 22, obtained in situ, with MeLi/MCl2 followed... 

The production of supramolecular polymers containing chromium tricarbonyl and manganese tricarbonyl moieties was deseribed."" Sweigart recently reported the self-assembly of r -quinone and r -semiquinone complexes derived from hydroquinone coordinated to cationic manganese tricarbonyl moieties." The metal-mediated deprotonation of these complexes allowed for the pro-duetion of polymers such as 16. 

Araki K, Winnischofer H, Viana HEB, Toyama MM, Engelmann FM, Mayer I, Formiga ALB, Toma HE (2004) Enhanced electrochemical and electrocatalytic activity of a new supramolecular manganese-pOTphyrin species containing four bis(bipyridine)(aqua) ruthenium(II) complexes. J Electroanal Chem 562(2) 145-152... 

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