MS36-P14 Structurally diverse of [Mn(salen)(NCS/NCSe)] complexesManganese(III)-salen complexes are subject of three research studies: (i) the design of models of Mn-containing proteins and enzymes, (ii) the development of catalysts for oxidations of organic substrates, and (iii) study of magnetism of Mn(III) complexes. Manganese(III)-salen complexes are interesting synthetic systems that can act as mimetic of catecholase, peroxidase, catalase and superoxide dismutase [1-3].
In this study, a series of thiocyanate- and selenocyanate- manganese(III) complexes derived from Schiff based obtained by the condensation of salicylaldehyde, 5-bromo-salicylaldehyde, 5-chloro-salicylaldehyde, 3,5-dibromo-salicylaldehyde or 3,5-dichlorosalicylaldehyde and 1,2-diamineethane have been synthesized and characterized using single-crystal X-ray crystallography in the cases of [Mn(3,5-Br2salen)(μ-NCS)]n (1), [Mn(3,5-Br2salen)(μ-NCSe)]n (2), [Mn(3,5-Cl2salen)(μ-NCS)]n (3), [[Mn(3,5-Cl2salen)(μ-NCSe)]n (4), [Mn(5-Clsalen)(μ-NCSe)]n.nMeOH (5), [Mn(5-Brsalen)(NCS)]2 (6), [Mn(5-Clsalen)(NCS)]2 (7) and [Mn(5-Brsalen)(NCSe)]2 (8). The complexes 1–5 form 1D coordination polymers with thiocyanate or selenocyanate bridging ligands. The compounds 2, 4 and 5 are first examples of manganese(III) complexes with bridging selenocyanate ligands. The compounds 6–8 are dinuclear molecular complexes with terminal thiocyanate or selenocyanate ligands.References:
 Chakraborty, P., Majumder, S., Jana, A., Mohanta, S. (2014). Inorg. Chim. Acta 410, 65–75.
 Vazquez-Fernandez, M.A., Bermejo, M.R., Fernandez-Garcia, M.I., Gonzalez-Riopedre, G.G., Rodriguez-Douton, M.J., Maneiro, M. (2011). J. Inorg. Biochem. 105, 1538–1547.
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Keywords: Coordination polymer, Mn(III)-salen, Crystal structure