应用化学

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5-氯水杨醛缩乙醇胺合铜(Ⅱ)的微波直接合成、晶体结构及抑菌活性

徐锁平1,2*,卢晗2,徐进红2   

  1. (1.中国矿业大学化工学院 徐州 221008;2.江苏师范大学,  江苏省功能材料绿色合成重点实验室 徐州 221116)
  • 收稿日期:2012-04-13 修回日期:2012-08-20 出版日期:2013-03-10 发布日期:2013-03-10
  • 通讯作者: 徐锁平,副教授; Tel:0516-83500366; Fax:0516-83403165; E-mail:xsp62@jsnu.edu.cn; 研究方向:功能配合物
  • 基金资助:
    江苏省高等教育优势学科基金江苏省功能材料绿色合成重点实验室开放课基金资助项目

Microwave Synthesis, Crystal Structure and Antibacterial Activities of 5-Chlorosalicylaldehyde-2-aminoethanol-copper(Ⅱ)

XU Suoping1,2*, LU Han2, XU Jinhong2   

  1. (1.School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221008,China;
    2.Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials,Jiangsu Normal University,Xuzhou 221116,China)
  • Received:2012-04-13 Revised:2012-08-20 Published:2013-03-10 Online:2013-03-10

摘要: 以5-氯水杨醛、乙醇胺和氯化铜为原料,在微波作用下合成了5-氯水杨醛缩乙醇胺合铜(Ⅱ)配合物。 利用红外光谱、元素分析和单晶X射线衍射方法对目标化合物进行了表征,标题配合物为单斜晶系,P21/n空间群。晶胞参数:a=0.49793(6) nm,b=1.7037(2) nm,c=1.07120(12) nm,β=94.579(3)°,F(000)=470,Z=2,V=0.905(8) nm3,Dc=1.689 mg/m3,R[I>2σ(I)],R1=0.0624,ωR2=0.1555。 配合物分子中,2种Schiff碱配体中的2个O原子和2个N原子参与配位,Cu(Ⅱ)处于四边形配位中心。 用MTT法测得标题配合物对6种革兰氏细菌(B.subtilis、S.aureus、S.faecalis、P.aeruginosa、E.coli和E.cloacae)的最小抑制浓度分别为12.25、25、12.5、12.5、6.25和6.25 mg/L。

关键词: 氯水杨醛缩乙醇胺合铜(Ⅱ), 微波合成, 晶体结构, 抑菌活性

Abstract: 5-Chlorosalicylaldehyde-2-aminoethanol-copper(Ⅱ) was synthesized using 5-chlorosalicylaldehyde, 2-aminoethanol and cupric chloride as precursors under microwave irradiation. The product was characterized by IR spectra, elemental analysis and single X-ray crystallography study. The title complex crystallizes in the monoclinic space group P21/n. Cell parameters:a=0.49793(6) nm, b=1.7037(2) nm, c=1.07120(12) nm, β=94.579(3)°, F(000)=470, Z=2, V=0.905(8) nm3, Dc=1.689 mg/m3, R[I>2σ(I)], R1=0.0624, ωR2=0.1555. The Cu(Ⅱ) adopts a square planar configuration coordinated by two nitrogen atoms and two oxygen atoms from two Schiff bases. The antibacterial(B.subtilis, S.aureus, S.faecalis, P.aeruginosa, E.coli and E.cloacae) activities of the compounds were assayed by MTT(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) method. It showed favorable antimicrobial activity with minimal inhibitory concentrations(MICs) of 12.25, 25, 12.5, 12.5, 6.25 and 6.25 mg/L against B.subtilis, S.aureus, S.faecalis, P.aeruginosa, E.coli and E.cloacae, respectively.

Key words: chlorosalicylaldehyde-aminoethanol-copper(Ⅱ), microwave-assisted, crystal structure, antibacterial activity

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