A New Acentric Heterometallic Inorganic-organic Hybrid Framework [ZnK2(m-BDC)2(H2O)2]n</ sub>: Fluorescent, NLO and Ferroelectric Properties

作者：Xue Li-Ping; Liu Yue-Cheng; Han Yun-Hu; Li Qi-Peng; Tian Chong-Bin; Lin Ping; Du Shao-Wu^*

来源：Chinese Journal of Structural Chemistry, 2014, 33(9): 1360-1366.

DOI：10.14102/j.cnki.0254-5861.2014.09.037

• heterometallic
• solvothermal synthesis
• photoluminescence
• ferroelectric

Solvothermal reactions of Zn(NO3)(2)center dot 6H(2)O with isophthalic acid in the presence of potassium nitrate lead to an acentric three-dimensional (3D) hetero-metallic inorganic-organic hybrid framework [ZnK2(m-BDC)(2)(H2O)(2)](n) (1, m-H2BDC = benzene-1,3-dicarboxylic acid). The crystal was characterized by elemental analysis, IR spectroscopy, TGA and single-crystal X-ray diffraction analysis. Complex 1 is of orthogonal crystal system, acentric space group Cmc2(1) with a = 19.764(6), b = 19.948(6), C = 12.039(4) angstrom, V = 4746(3) angstrom(3), Z = 4, C32H20O19K4Zn2, M-r = 995.66, D-c = 1.393 g/cm(3), F(000) = 2000 and mu = 1.426 mm(-1). The final R = 0.0761 and wR = 0.1841. The crystal exhibits remarkable blue luminescence emissions with high quantum yield of 56.02% and displays modest powder SHG efficiency of about 0.7 times that produced by a potassium dihydrogen phosphate (KDP) powder. In addition, it also exhibits potential ferroelectric property.

• 单位
  中国科学院大学; 结构化学国家重点实验室; 中国科学院福建物质结构研究所