Manganese complexes phenanthroline

Fig. 23. Structure of manganese complexes used for oxidative DNA damage. 28 Mn -bis-(salicylidene)ethylenediamine (Mn Salen), and 29 Mn -2,9-bis(2-hydroxy-phenyl) ,10 -phenanthroline.

A crystal structure of the 1 1 adduct of 1,10-phenanthroline and the seven coordinate species, [Mn(199)(H20)2](C104)2, indicates that the phenanthroline molecule is not coordinated to the manganese but is sandwiched between [Mn(I99)(H20)2]2+ units in a lamellar structure.136 The phenanthroline nitrogens are hydrogen bound to water molecules in adjacent complex ions the structure also appears to be held together by it donor/rc acceptor and dispersion forces. 

The chemistry of phenanthroline (PHEN) complexes of e.g. manganese, is comparable to that of BPY. The relative stiffness of the former ligand, however, yields complexes that... 

The catalytic activity of co-ordination compounds in oxidations continues to be examined and, together with the Faraday Society Discussion, other aspects of this area of investigation have been the subject of recent reviews. Redox reactions involving bipyridyl and u-phenanthroline complexes of transition metals have been discussed and catalytic oxidations of complexes of manganese, cobalt, copper, and palladium have also been surveyed. Reviews are also available of ruthenium ammine chemistry, and redox reactions involving molybdenum complexes, together with an account of catalase and peroxidase reactivity of copper(ii) complexes. ... 

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