Citation: DU Xi-Gang, MI Gang, LIU Ji-Chun, ZHANG Jun. A Luminescent Zn(Ⅱ) Supramolecular Coordination Polymer Constructed from 3,4-Thiophenedicarboxylic Acid and Flexible Benzimidazole-based Connector[J]. Chinese Journal of Structural Chemistry, ;2014, 33(11): 1597-1602. doi: 10.14102/j.cnki.0254-5861.2011-0315 shu

A Luminescent Zn(Ⅱ) Supramolecular Coordination Polymer Constructed from 3,4-Thiophenedicarboxylic Acid and Flexible Benzimidazole-based Connector

1.
School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang 471003, China

Corresponding author: ZHANG Jun,
Received Date: 31 March 2014
Available Online: 11 August 2014
Fund Project: This work was supported by the National Natural Science Foundation of China (No. 21076063) (No. 21076063)the Foundation of Henan Educational Committee (No. 13A150244) (No. 13A150244)

A new luminescent coordination polymer [Zn(tdc)(pbim)]_n 1 (tdc=3,4-thiophenedicarboxylate, pbim=1,3-bis(benzimidazol-1'-yl)propane) has been synthesized under hydrothermal conditions. The compound crystallizes in monoclinic system, space group P2₁/c with a=8.4840(9), b=16.4913(17), c=14.9234(16)Å, β=95.8870(10)°, V=2077.0(4)Å³, Z=4, M_r=511.84, D_c=1.637 Mg/m³, μ=1.324 mm^-1, F(000)=1048, the final R=0.0361 and wR=0.0824 for 3656 observed reflections with I>2σ(I). Structural analyses reveal that 1 exhibits a onedimensional (1D) double chain, which is further connected into a two-dimensional (2D) supramolecular architecture by π-π stacking interactions. The results indicate that H2tdc and pbim ligand are effective building blocks in constructing polymers with diverse architecture. Solid state properties for 1, such as infrared spectroscopy, elemental analyses, thermal stability and luminescent property, have also been investigated.
- zinc(Ⅱ),
- 3,4-thiophenedicarboxylate,
- hydrothermal synthesis,
- crystal structure,
- luminescent property
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