Citation: XUE Li-Ping, LIU Yue-Cheng, HAN Yun-Hu, LI Qi-Peng, TIAN Chong-Bin, LIN Ping, DU Shao-Wu. A New Acentric Heterometallic Inorganic-organic Hybrid Framework[ZnK₂(m-BDC)₂(H₂O)₂]_n:Fluorescent, NLO and Ferroelectric Properties[J]. Chinese Journal of Structural Chemistry, ;2014, 33(9): 1360-1366. shu

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

XUE Li-Ping ^a,b ,
LIU Yue-Cheng ^a ,
HAN Yun-Hu ^a,b ,
LI Qi-Peng ^a,b ,
TIAN Chong-Bin ^a ,
LIN Ping ^a ,
DU Shao-Wu ^a,,

1.
a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
2.
b Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: DU Shao-Wu,
Received Date: 5 March 2014
Available Online: 7 May 2014
Fund Project: This work was supported by the National Basic Research Program of China (973 Program, 2012CB821702) (973 Program, 2012CB821702)

Solvothermal reactions of Zn(NO₃)₂·6H₂O 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 Cmc2₁ with a=19.764(6), b=19.948(6), c=12.039(4) Å, V=4746(3) Å³, Z=4, C₃₂H₂₀O₁₉K₄Zn₂, M_r=995.66, Dc=1.393 g/cm³, F(000)=2000 and μ=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.
- heterometallic,
- solvothermal synthesis,
- photoluminescence,
- ferroelectric
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