Synthesis and Crystal Structures of Schiff Base Copper(II) Complexes [Cu(L~1)(NCS))], [CuBr(L~2)], and [CuCl(L~3)]~1

摘要

A series of copper(II) complexes, [Cu(L~1)(NCS)] (I), [CuBr(L~2)] (II), and [CuCl(L~3)] (III), where L~1, L~2, and L~3 are 2,4-dibromo-6-[(pyridin-2-ylmethylimino)methyl]phenolate, 4-chloro-2-[(pyri-dm-2-ylmethylimino)methyl]phenolate, and 1-[(pyridin-2-ylmethylimino)methyl]-naphthalen-2-ol, respectively, were prepared. The complexes were characterized by elemental analysis, IR spectra, and single crystal X-ray determination. The crystals of the three complexes crystahze in the monoclinic space group P2_1. For I, a = 8.127(2), b = 13.077(3), c = 14.967(3) A, (3 = 91.975(2)°, K= 1589.8(6) A~3, Z= 4. For II, a = 7.736(2), b = 10.613(2), c = 16.199(3) A, p = 91.130(2)°, V= 1329.8(5) A~3, Z= 4. For HI, a = 8.062(2), b = 8.599(2), c = 21.087(2) A, β = 100.338(2)°, V= 1438.1(4) A~3, Z= 4. The Cu atom in each of the complexes is in square planar geometry.