Abstract: The coordination polymer {[Cu2(L)2(Cl)2]·H2O}n(I) has been synthesized from the reaction of the amino acid reduced Schiff base HL (N-(4-pyridylmethyl)-L-serine) with CuCl2·2H2O at room temperature using diffusion method.The compound was characterized via elemental analysis, FTIR, single-crystal X-ray diffraction, powder X-ray diffraction and thermogravimetric analysis.The crystal structure consists of two crystallographically independent Cu(II).Cu1 possesses a distorted octahedral CuO2N2Cl2 geometry.Cu2 displays a slightly distorted square pyramid geometry.The L-anion via the pyridyl N atom and chloride ion bridge Cu1 and Cu2 to extend into a 2D network structure.Variable temperature magnetic studies show that complex I is ferromagnetic coupling between 300 K and 2 K.

Key words: The coordination polymer {[Cu2(L)2(Cl)2]·H2O}n(I) has been synthesized from the reaction of the amino acid reduced Schiff base HL (N-(4-pyridylmethyl)-L-serine) with CuCl2·2H2O at room temperature using diffusion method.The compound was characterized via elemental analysis, FTIR, single-crystal X-ray diffraction, powder X-ray diffraction and thermogravimetric analysis.The crystal structure consists of two crystallographically independent Cu(II).Cu1 possesses a distorted octahedral CuO2N2Cl2 geometry.Cu2 displays a slightly distorted square pyramid geometry.The L-anion via the pyridyl N atom and chloride ion bridge Cu1 and Cu2 to extend into a 2D network structure.Variable temperature magnetic studies show that complex I is ferromagnetic coupling between 300 K and 2 K.