Manganese, coordination chemistry

Coordination chemistry of manganese and porphyrins. M. Calvin, Rev. Pure Appl. Chem., 1965,15, 1-10 (9). 

The coordination chemistry of (phenoxyl)manganese complexes is rather more complicated because both metal- and ligand-centered electron-transfer processes are accessible in the normal potential range. The phenolato precursors are known to exist with manganesc(II), (III), and even (IV). In fact, three phenolato groups strongly stabilize the Mn(IV) oxidation state. 

To examine the chemical behavior of these new ligands 48-50 in coordination chemistry, tricarbonyl complexes with manganese and rhenium were synthesized from [MnBr(CO)s] and [ReBrCCOls] as described earlier for the other heteroscorpionate ligands (Scheme 28). The purpose of these tricarbonyl complexes was to verify tripodal binding of the solid-bound ligand. The protected OH linker in 50 acts as model for the solid phase bound ligand. 

Due to circumstances beyond the control of the Editors it has not been possible to complete a truly comprehensive account of the coordination chemistry of manganese. Nevertheless, what follows provides complete coverage of oxidation states Mii, Mn, and Mn , and... 

The coordination chemistry [8] and electrochemical properties [9-11] of manganese-containing compounds have been reviewed on a number of occasions. These collections contain primarily thermodynamic and (to a lesser extent) kinetic information on compounds of relatively simple composition. The objective in this chapter is to provide a descriptive summary of the electrochemical properties of a wide range of manganese compounds. There is generous coverage of coordination complexes, which seeks to illustrate relationships between structure and... 

Palenik, G. J. (1997c). Bond valence sums in coordination chemistry using oxidation state independent i o values. A simple method for calculating the oxidation state of manganese in complexes containing only Mn-O bonds. Inorg. Chem. 36, 4888-90. 

The coordination chemistry of oxalate (ox, C2042-) compounds provides a series of very interesting compounds from the stereochemical and magnetic points of view [197]. Most frequently the compounds form honeycomb layers in the presence of transition metal ions, in which the stereochemistry of the metal ion coordination sphere alternates between A and A. However, a three-dimensional homochiral structure is also possible. On the other hand, the negative charge of the oxalates necessitates the incorporation of cations between them, which provides the opportunity to introduce chirality and additional functionality in materials. The compound formed between homochiral manganese II oxalate and iron II tris bipyridinc (bpy) with formula [Mn oxls]2 " [Fcn(bpy)3]2+ crystallises in the space group fJ4 32. 

Most of the coordination chemistry for the higher oxidation states of manganese involves the 3+ oxidation state a concise summary is provided by Cotton and Wilkinson (18). They include a discussion of the unusual structure for the manganese (III)-acetate complex ... 

Gas-Phase Coordination Chemistry of Manganese(lll)-Salen Complexes... 

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