Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (23): 2323-2328. Previous Articles     Next Articles

具双层结构的二维配位聚合物{[NaCu(BTC)(H2O)4]·2H2O}n的合成、结构及荧光性质

陈建新1,2, 刘世雄1   

  1. 1. 福州大学中心实验室, 福州, 350002;福建师范大学化学与材料学院, 福州, 350007;
    2. 福州大学中心实验室, 福州, 350002
  • 投稿日期:2004-04-05 修回日期:2004-08-05 发布日期:2014-02-17
  • 通讯作者: 刘世雄,E-mail:sxliu@fzu.edu.cn E-mail:sxliu@fzu.edu.cn
  • 基金资助:
    国家自然科学基金(No.20171012)和福建省自然科学基金(No.E0110010)资助项目.

Synthesis, Structure and Fluorescence of {[NaCu(BTC)(H2O)4]·2H2O}n, a Double-sheet Coordination Polymer with 2D Network

CHEN Jian-Xin1,2, LIU Shi-Xiong1   

  1. 1. Central Laboratory, Fuzhou University, Fuzhou 350002;
    2. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007
  • Received:2004-04-05 Revised:2004-08-05 Published:2014-02-17

The title complex {[NaCu(BTC)(H2O)4]·2H2O}n (H3-BTC=1,3,5-benzenetricarboxylic acid) has been synthesized by the reaction of Cu(acac)2 (acac=acetylacetone) and Na3BTC in the mixed solvent of methanol and water.The compound was characterized by single-crystal X-ray diffraction analysis, infrared spectrum, fluorescent spectrum and TGA.The crystal structure is of monoclinic, space group C2/c with a=2.1657(1) nm, b= 1.12155(5) nm, c=1.35291(7) nm, β=122.379(1)°, V=2.7752(2) nm3, Mr=401.74, Dc= 1.923 Mg·m-3, Z=8, μ(MoKα)=1.672 mm-1, F(000)=1640, GOF=1.014.A total of 13298 reflections were collected of which 3339 were unique.The structure was refined to R=0.0276 and wR=0.0766 for 3176 observed reflections with I2σ(I).The crystal structure forms two-dimensional double-sheet network by the extension of copper(Ⅱ )/sodium(I) trimesate and bridging aqua ligands.There is an obvious interaction between metal ions Cu(Ⅱ ) and Na(I) in the compound, which gives an infinite one-dimensional quasi-metal string complex.Moreover, the complex gives a strong fluorescent emission band at 420 nm (λex=314 nm) in the solid state at room temperature.

Key words: coordination polymer, 1,3,5-benzenetricarboxylic acid, copper complex, fluorescent spectrum, quasimetal string