Synthesis, Structure and Spectra Properties of a New μ-O-bridged Binuclear Copper(Ⅱ) Compound: Cu2(Salen)2

Abstract

Abstract: The present paper covers the preparation, characterization and X-ray analysis of a μ-O bridged binuclear compound, Cu₂(Salen)₂It crystallized in monoclinic system, space group C2/c (No. 15), with a =2.6580(5) nm, b =0.6986(1) nm, c =1.4718(3) nm, β =97.63(3)°. V =2.708(1) nm³, Z =8, D_c=1.618 Mg/m³, F(000)=1352, R =0.088, wR =0.073, GOF(F)=0.89. The copper(Ⅱ) atom is five coordinated in a distorted square pyramidal environment to two oxygen atoms and two nitrogen atoms of one Salen ligand and a oxygen atom of the neighbor Salen ligand. Two neighbor copper(Ⅱ) units are connected by two μ-O bridges to form a dimer. The shortest distance of the copper(Ⅱ) copper(Ⅱ) dis-tance is 0.3117 nm, with the Cu_O_Cu angle is 93.9°. The IR, electronic spectra and ESRof the titled compound have been studied. The theoretic analysis of the ESRof the compound based on the electronic and ESR data have been made to give the parameters, g∥=2.18, g ⊥= 2.05, k =07, indicating some covalence between the Cu(Ⅱ) and coordination atoms in the titled compound.

Key words: μ-O-bridged, Binuclear copper(Ⅱ) complex, Crystal structure

CLC Number:

O614.12

TrendMD:

SHEN Hao-Yu, LIAO Dai-Zheng, JIANG Zong-Hui, YAN Shi-Ping, WANG Geng-Lin . Synthesis, Structure and Spectra Properties of a New μ-O-bridged Binuclear Copper(Ⅱ) Compound: Cu₂(Salen)₂[J]. Chem. J. Chinese Universities, 1999, 20(7): 1017.

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Synthesis, Structure and Spectra Properties of a New μ-O-bridged Binuclear Copper(Ⅱ) Compound: Cu₂(Salen)₂

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