Synthesis, X-Ray Structural Characterization, and Catalytic Property of a Manganese (II) Complex With 2-Bromo-6-[(3-cyclohexylammoniopropylimino)methyl]phenolate and Thiocyanate Ligands.

A new manganese(II) complex [MnL2(NCS)2]·2H2O with the Schiff base ligand derived from 3-bromosalicylaldehyde withN-cyclohexylpropane-1,3-diamine has been synthesized and structurally characterized by physicochemical methods and single-crystal X-ray determination. The crystal of the complex crystallizes in monoclinic space groupC2/c, witha= 24.749(2),b= 7.2957(7),c= 26.183(4) Å,β= 118.70(2)°,V= 4171.6(8) Å3,Z= 4,R1= 0.0893,wR2= 0.2305, GOOF = 1.084. X-ray analysis indicates that the complex is a mononuclear manganese species, which possesses crystallographic inversion center symmetry. The Mn atom, lying on the inversion center, is coordinated in an octahedral coordination by two phenolate O and two imine N atoms from two Schiff base ligands, and two thiocyanate N atoms. The catalytic property for epoxidation of styrene by the complex has also been tested. [ABSTRACT FROM PUBLISHER]