Organomanganese complex

A homogeneous catalyst is the diamino organomanganese complex 1. Its combination with CuCl is used in coupling reactions. 

Organomanganese phosphoraneiminato complexes with a heterocubane struc-... 

In the previous chapter (07AHC(93)185), complexes of polypyridine ligands with non-transition and early transition metals were considered. Most publications, however, are dedicated to the rhenium(I) and ruthenium(II) complexes, and the number of sources is so high that they deserve separate chapters. Moreover, studies of such complexes become more and more popular due to their unique photochemical and electrochemical properties and ability to form molecular assemblies and nanocrystallites. Herein we consider organomanganese and organorhenium complexes of polypyridine ligands. As always in this series of chapters, emphasis will be on the synthetic and coordination aspects, as well as reactivity. We have attempted to document all the publications on applied aspects, but without analyzing them since this could be the subject of a separate chapter. 

The second chapter is the twelfth in the series on the organic chemistry of heterocyclic ligands in metallic complexes by A.P. Sadimenko of University of Fort Hare (Republic of South Africa). The present contribution deals with the chemistry of polypyridine ligands in organomanganese and organorhenium complexes. Its current importance can be measured by the fact that, of the nearly 700 references, approximately half date from the last 10 years. 

The organomanganese reagents are comparable to ceriummagnesium ate complexes in almost complete addition to aldehydes in the presence of ketones. 

The many carbenes of organomanganese compounds have been reported [62-68b]. For example, CpMn(CO)3 reacts with PhC=CH under light irradiation to give acetylene r-complex and the carbene complex Cp(OC)2Mn=C=CHPh via rearrangement as shown in eq. (14.26) [62]. In this reaction, a carbon-bridged product is also formed, and this bridged compound is also obtained by the reaction of the carbene product with CpMn(CO)3 as raw material [62]. 

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