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A Novel Luminescent Zinc(Ⅱ) Coordination Polymer with 2D → 3D Polythreaded Motif

A Novel Luminescent Zinc(Ⅱ) Coordination Polymer with 2D → 3D Polythreaded Motif
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摘要 A new zinc(Ⅱ) compound, [Zn(BTA)(UCA)]n (1, HBTA = 1,2,3-benzotriazole, HUCA = 4-imidazoleacrylic acid), has been synthesized via the hydrothermal reactions of Zn(OAC)2.2H20, HBTA and HUCA. The crystal structure is of monoclinic, space group P21/c with a = 7.450(3), b = 18.911 (8), c = 9.198(4) A, fl = 94.317(8)°, V = 1292.2(9) A3, C12HgNsO2Zn, Mr = 320.63, Z = 4, Dc = 1.648 g/cm3, F(000) = 648,/z = 1.909 mm-1, R= 0.0255 and wR= 0.0655 for 2104 observed reflections (I 〉 2a(/)). Single-crystal X-ray diffraction analysis revealed that compound 1 features a two-dimensional (2D) layered framework based on benzotriazole controlled dinuclear [Zn2(BTA)2] subunits. Furthermore, these 2D layers are threaded into a 3D supramolecular framework via the direction of intermolecular hydrogen bonds and π-π interactions. In addition, the thermal stability and fluorescence property of compound 1 were also investigated. A new zinc(Ⅱ) compound, [Zn(BTA)(UCA)]n (1, HBTA = 1,2,3-benzotriazole, HUCA = 4-imidazoleacrylic acid), has been synthesized via the hydrothermal reactions of Zn(OAC)2.2H20, HBTA and HUCA. The crystal structure is of monoclinic, space group P21/c with a = 7.450(3), b = 18.911 (8), c = 9.198(4) A, fl = 94.317(8)°, V = 1292.2(9) A3, C12HgNsO2Zn, Mr = 320.63, Z = 4, Dc = 1.648 g/cm3, F(000) = 648,/z = 1.909 mm-1, R= 0.0255 and wR= 0.0655 for 2104 observed reflections (I 〉 2a(/)). Single-crystal X-ray diffraction analysis revealed that compound 1 features a two-dimensional (2D) layered framework based on benzotriazole controlled dinuclear [Zn2(BTA)2] subunits. Furthermore, these 2D layers are threaded into a 3D supramolecular framework via the direction of intermolecular hydrogen bonds and π-π interactions. In addition, the thermal stability and fluorescence property of compound 1 were also investigated.
出处 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第9期1399-1404,共6页 结构化学(英文)
基金 Supported by the 973 Program of China(2011CBA00505) the"Strategic Priority Research Program"of the Chinese Academy of Sciences(XDA07070200,XDA09030102) the Science Foundation of Fujian Province(2006L2005)
关键词 zinc(II) compound hydrothermal reaction 2D layer LUMINESCENCE zinc(II) compound, hydrothermal reaction, 2D layer, luminescence
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