Resumen de Two new schiff base ni ii and cu ii complexes: Synthesis and structures
Qing-bin Li, Ling-wei Xue, Wei-chun Yang, Gan-qing Zhao
Schiff base ligands 2-bromo-4-chloro-6-[(2-piperidin-1-ylethylimino)methyl]phenol (BCP) and 2,4-dibromo-6-[(2-morpholin-4-ylethylimino)methyl]phenol (DBP) and their nickel(II) and copper(II) complexes [Ni(BCP)2(CH3OH)2]2NO3 (1) and [Cu(DBP)2] (2), have been prepared and characterized by elemental analyses, IR, and single crystal X-ray crystallographic determination. The crystal of (1) is orthorhombic: space group Pbcn, a = 23.894(1), b = 8.244(2), c = 19.900(2) Å, V = 3919.9(10) Å3, Z = 4. The crystal of (2) is monoclinic: space group P2(1)/c, a = 7.072(2), b = 15.426(3), c = 14.214(3) Å, β = 96.718(2)°, V = 1540.0(7) Å3, Z = 2. The Schiff bases coordinate to the metal atoms through the phenolate O and imine N atoms. The Ni atom in (1) is in an octahedral coordination, and the Cu atom in (2) is in a square planar coordination.
