A New Acentric Heterometallic Inorganic-organic Hybrid Framework [ZnK_2(m-BDC)_2(H_2O)_2]n: Fluorescent, NLO and Ferroelectric Properties  

作　　者：薛丽萍 刘月成 韩云虎 李启彭 田崇斌 林平 杜少武 

机构地区：[1]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Journal of Structural Chemistry》2014年第9期1360-1366,共7页结构化学（英文）

基　　金：supported by the National Basic Research Program of China(973 Program,2012CB821702);the National Natural Science Foundation of China(21233009 and 21173221);the State Key Laboratory of Structural Chemistry

摘　　要：Solvothermal reactions of Zn（NO3）2·6H20 with isophthalic acid in the presence of potassium nitrate lead to an acentric three-dimensional （3D） hereto-metallic inorganic-organic hybrid framework [ZnK2（m-BDC）ffH20）2]n （1, m-H2BDC = benzene-l,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 Cmc2j with a = 19.764（6）, b = 19.948（6）, c = 12.039（4） A, V = 4746（3） A3, Z = 4, C32H20019KaZn2, Mr = 995.66, Dc= 1.393 g/cm3, F（000） = 2000 andp = 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.Solvothermal reactions of Zn（NO3）2·6H20 with isophthalic acid in the presence of potassium nitrate lead to an acentric three-dimensional （3D） hereto-metallic inorganic-organic hybrid framework [ZnK2（m-BDC）ffH20）2]n （1, m-H2BDC = benzene-l,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 Cmc2j with a = 19.764（6）, b = 19.948（6）, c = 12.039（4） A, V = 4746（3） A3, Z = 4, C32H20019KaZn2, Mr = 995.66, Dc= 1.393 g/cm3, F（000） = 2000 andp = 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.

关 键 词：HETEROMETALLIC solvothermal synthesis PHOTOLUMINESCENCE ferroelect1 

分 类 号：O621.2[理学—有机化学] O611.3[理学—化学]