MS36-P14 Structurally diverse of [Mn(salen)(NCS/NCSe)] complexes Jan Moncol (Institute of Inorganic Chemistry, Technology and Materials, Slovak University of Technology in Bratislava, Bratislava, Slovakia) Martin Schoeller (Institute of Inorganic Chemistry, Technology and Materials, Slovak University of Technology in Bratislava, Bratislava, Slovakia)email: jan.moncol@stuba.skManganese(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:

[1] Chakraborty, P., Majumder, S., Jana, A., Mohanta, S. (2014). Inorg. Chim. Acta 410, 65–75.

[2] 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.

[3] Iranzo, O. (2011). Bioorg. Chem. 39, 73–87.

Keywords: Coordination polymer, Mn(III)-salen, Crystal structure