Synthesis and Crystal Structure of a Salicylaldehyde Ethylene Diamine Schiff Base Manganese (Ⅲ) Comp

The title compound, [Mn(salen)(salicyl)]@1.5H2O ( H2salen = N, N?-ethylenebis- (salicylideneaminato), Hsalicyl = salicylaldehyde), has been obtained from the reaction system containing (o-HOC6H4CH=NCH2)2, o-HOC6H4CHO and Mn(ClO4)2@6H2O in EtOH solvent and structurally characterized. It crystallizes in the monoclinic, space group P21/c with a = 13.0548(4), b = 13.9254(4), c = 11.6630(1) ?, ( = 105.199(2)°, V = 2046.09(9) ?3, Z = 4, C23H22MnN2O5.5, Mr = 469.37, Dc = 1.524 g/cm3, F(000) = 972, ( = 0.687mm-1 . R = 0.0630 and wR = 0.1142 for 1901 observed reflections with I >2σ(I). The Mn(Ⅲ) is coordinated by N(1), N(2), O(1) and O(2) of the Schiff base ligand and phenolate O atom of salicylaldehyde with O(3)-Mn distance of 2.050(4) ?, forming a relatively rare five-coordinate square-pyramidal structure.