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Syntheses, structures, luminescent and magnetic properties of two coordination polymers based on a fl exible multidentate carboxylate ligand

Dan Tian ,  Xiao-Jing Liu ,  Rong-Ying Chen ,  Ying-Hui Zhang

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Citation:  Dan Tian, Xiao-Jing Liu, Rong-Ying Chen, Ying-Hui Zhang. Syntheses, structures, luminescent and magnetic properties of two coordination polymers based on a fl exible multidentate carboxylate ligand[J]. Chinese Chemical Letters, 2015, 26(5): 499-503. doi: 10.1016/j.cclet.2015.01.019 shu

Syntheses, structures, luminescent and magnetic properties of two coordination polymers based on a fl exible multidentate carboxylate ligand

    • 通讯作者: Ying-Hui Zhang,
  • 基金项目:

    This work was supported by the 973 Program of China (No. 2014CB845600)  (No. 2014CB845600)

    MOE Innovation Team (No. IRT13022) of China. (No. IRT13022)

摘要: Two coordination polymers, {[Cu3(tci)2(DMAc)3]·6DMAc·2H2O}n (1) and {[Cu3(tci)2(tpt)2(H2O)2]·2DMAc·2H2O}n (2) (H3tci = tris(2-carboxyethyl)isocyanurate, tpt = 2,4,6-tris(4-pyridyl)-1,3,5-triazine, DMAc = N,N-dimethylacetamide), have been constructed under solvothermal conditions. Both polymers were structurally characterized by single crystal X-ray diffraction, elemental analyses, IR spectra, thermogravimetric (TG) analyses and powder X-ray diffraction (RXPD). 1 shows a (3,4)-connected 2D layer structure comprising Cu2(CO2)4 paddle-wheel units, which are further bridged by C-H…O interactions to give a 3D supramolecular network. The introduction of tpt produces different framework for 2 that comprises a dinuclear and a mononuclear Cu(II) building units, which are further bridged together by tci3- and tpt ligands to give a 4-connected 2D topological net. Adjacent 2D layers are packed together via C-H…O interactions and π…π stacking interactions to form a 3D supramolecular structure. In addition, the luminescent properties and the solid-state UV-vis spectra of 1 and 2 were explored. Furthermore, antiferromagnetic exchange interactions were unveiled in the Cu2(COO)4 units of 1.

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  • 发布日期:  2015-01-24
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