Syntheses, crystal structures, and fluorescence properties of Zinc(II) complexes with multi-dentate Schiff bases

详细信息    查看全文

• 作者：S. S. Qian (1)
  X. S. Cheng (2)
  J. Q. Ren (2)
  Z. L. You (2)
  H. L. Zhu (1)
  
• 刊名：Russian Journal of Coordination Chemistry
• 出版年：2013
• 出版时间：December 2013
• 年：2013
• 卷：39
• 期：12
• 页码：836-843
• 全文大小：
• 作者单位：S. S. Qian (1)
  X. S. Cheng (2)
  J. Q. Ren (2)
  Z. L. You (2)
  H. L. Zhu (1)
  
  1. School of Life Sciences, Shandong University of Technology, ZiBo, 255049, P.R. China
  2. Department of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, P.R. China
  
• ISSN：1608-3318

文摘

Two new structurally similar mononuclear Schiff base zinc(II) complexes, [ZnBr(ClMP)] (I) and [ZnCl(NMP)] (II) (ClMP = 4-chloro-2-[(3-morpholin-4-ylpropylimino)methyl]phenolate; NMP = 4-nitro-2-[(3-morpholin-4-ylpropylimino)methyl]phenolate), and two new dinuclear Schiff base zinc(II) complexes, [Zn2(EMP)2I2] (III), and [Zn2(MPA)(CH3OH)2(N3)2] (IV) (EMP = 5-diethylamino-2-[(2-dimethylaminoethylimino)methyl]phenolate; MPA = N,Nbis(3-methoxysalicylidene)propane-1,3-diamine), have been prepared and characterized mainly by single-cyrstal X-ray diffraction. Complex I crystallizes in the monoclinic space group P21/n with unit cell dimensions: a = 15.116(3), b = 9.465(1), c = 23.714(4) , = 104.358(2) V = 3286.9(8) 3, Z = 8, R 1 = 0.0439, and wR 2 = 0.0736. Complex II crystallizes in the monoclinic space group P21/c with unit cell dimensions: a = 7.253(2), b = 16.652(4), c = 13.568(3) , = 96.600(2) V = 1627.8(6) 3, Z = 4, R 1 = 0.0417, and wR 2 = 0.0809. Complex III crystallizes in the monoclinic space group C2/c with unit cell dimensions: a = 27.962(2), b = 8.246(2), c = 31.605(3) , = 90.343(2) V = 7287.4(15) 3, Z = 8, R 1 = 0.0721, and wR 2 = 0.1709. Complex IV crystallizes in the monoclinic space group C2/c with unit cell dimensions: a = 20.483(3), b = 11.344(2), c = 14.909(3) , = 131.650(1) V = 2588.6(7) 3, Z = 4, R 1 = 0.0343, and wR 2 = 0.0792. Each Zn atom in I and II are four-coordinated in a tetrahedral geometry by the NNO donor set of the Schiff base ligand and one halide atom. The Zn atoms in III are in square pyramidal coordination, and those in IV are in octahedral and tetrahedral coordination. Thermal stability and fluorescence properties of the complexes I and II have also been determined.