高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1017.

• 论文 • 上一篇    下一篇

μ-氧桥联的双核铜(Ⅱ)配合物Cu2(Salen)2的合成、结构和光谱性质

沈昊宇, 廖代正, 姜宗慧, 阎世平, 王耕霖   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1998-12-04 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 廖代正
  • 作者简介:沈昊宇,女,28岁,博士.
  • 基金资助:

    国家自然科学基金(批准号:29631040,59772020);天津市自然科学基金(983604611);高等学校博士点专项基金

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

SHEN Hao-Yu, LIAO Dai-Zheng, JIANG Zong-Hui, YAN Shi-Ping, WANG Geng-Lin   

  1. Department of Chemistry, Nankai University, Tianjin, 300071
  • Received:1998-12-04 Online:1999-07-24 Published:1999-07-24

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摘要： 报道了双核铜(Ⅱ)配合物Cu2(Salen)2(Salen为N,N′-二水杨醛乙二胺席夫碱)的合成、表征和晶体结构分析.该晶体属单斜晶系,具有C2/c(No.15)空间群,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,Dc=1.618Mg/m3,F(000)=1352,R=0.088,wR=0.073,GOF(F)=0.89.该化合物是由两个氧桥桥联的双核铜(Ⅱ)配合物,铜(Ⅱ)离子处于五配位的畸变四方锥配位环境中.

关键词: 氧桥桥联, 双核铜(Ⅱ)配合物, 晶体结构氧桥桥联, 晶体结构

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, Dc=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

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