2015. 56, 6 UDC 548.73:541.49 CHARACTERIZATION AND CATALYTIC PROPERTY OF MANGANESE(III) COMPLEXES WITH SCHIFF BASES G.-S. Li, H.-L. Zhang Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. China E-mail: gangsen_li@126.com Received June, 19, 2014 Two mononuclear manganese(III) complexes, [MnL1(OH2)(CH3OH)]ClO4 (1) and [MnL2] (2), where L1 and L2 are the deprotonated forms of N,N-bis(5-chloro-2-hydroxybenzylidene)ethane-1,2-diamine and tris{2-[(3,5-dichlorosalicylidene)amino]ethyl}amine, respectively, are obtained by the reaction of Schiff bases with manganese perchlorate in methanol. <...> The complexes were characterized by elemental analysis, IR spectra, and single crystal X-ray determination. <...> In both complexes, Mn atoms are in the octahedral coordination. <...> In the crystal structure of complex 1, the complex molecules are linked by water ligands through intermolecular O—H complex molecules through intermolecular O—H O hydrogen bonds. <...> In the crystal structure of complex 2, the molecules are stacked along the y axis through lytic oxidation on olefins of the complexes is studied. <...> DOI: 10.15372/JSC20150622 Keywords: manganese complex, mononuclear complex, Schiff base, crystal structure, catalytic oxidation of olefins. <...> A great number of metal complexes have shown interesting catalytic properties for various reactions [ 6—10]. <...> Aiming at the exploration of new catalysts for the oxidation of olefins, in the present work, two new mononuclear manganese(III) complexes, [MnL1(OH2)(CH3OH)]ClO4 (1) and [MnL2] (2), where L1 and L2 are the deprotonated forms of N,Nbis(5-chloro-2-hydroxybenzylidene)ethane-1,2-diamine (H2L1) and tris{2-[(3,5-dichlorosalicylidene)amino]ethyl}amine (H3L2), respectively, are described. <...> Manganese perchlorate was prepared by the reaction of manganese carbon in water, followed by recrystallization. <...> The H2L1 and H3L2 Schiff bases were prepared according to the literature method [ 14, 15 ]. <...> Elemental analyses were carried out using a Perkin—Elmer 2400 II elemental analyzer. <...> Infrared spectra were recorded on a Perkin—Elmer FT-IR spectrophoto© Li G.-S., Zhang H.-L., 2015 <...>