Two Coordination Polymers Constructed by Cd(II) and Zn(II) with in situ Generated 5-(3-Pyridyl)tetrazolate Ligand: Syntheses, Crystal Structures and Luminescence Properties

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Hydrothermal reactions of 3-cyanopyridine and NaN3 with ZnCl2 or CdCl2•5/2H2O in the presence of 1,4-benzenedicarboxylic acid (H2bdc) yielded two new coordination polymers, {[Zn(3-ptz)(bdc)0.5(H2O)2]n•2H2O}n (1) and [Cd2(3-ptz)2Cl2]n (2), based on in situ synthesized 5-(3-pyridyl)tetrazolate (3-ptz−) organic ligand. They have been structurally characterized by elemental analysis (EA), infrared spectroscopy (IR) and single-crystal/powder X-ray diffraction (PXRD). In 1, two Zn(II) ions are linked together through two µ2-(3-ptz−) ligands to form a dimeric unit of [Zn(µ2-3-ptz)(H2O)2]22+, which is further connected with other equivalent units by µ2-bdc2− spacers, resulting in an infinite 1D polymeric chain of [Zn2(3-ptz)2(H2O)2(bdc)]n, and then strong hydrogen bonding interactions extend these 1D chains into a 3D supramolecular structure. In 2, the Cd(II) ions are connected through µ4-(3-ptz−) ligands and Cl− anions, leading to infinite 2D layers of [Cd2(3-ptz)Cl2]nn+, which are further linked by another µ4-(3-ptz−) pillared ligand to form a 3D layered-pillared framework architecture of [Cd2(3-ptz)2Cl2]n. Furthermore, thermal stability of these compounds was measured by thermogravimetric analysis (TGA) and their photoluminescent properties were also investigated in the solid state at room temperature.

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	卢文贯
	王小兵
	刘宏文
	洪显兰

关键词 ： coordination polymers, 5-(3-pyridyl)tetrazole, crystal structure, fluorescence

Abstract：Hydrothermal reactions of 3-cyanopyridine and NaN3 with ZnCl2 or CdCl2•5/2H2O in the presence of 1,4-benzenedicarboxylic acid (H2bdc) yielded two new coordination polymers, {[Zn(3-ptz)(bdc)0.5(H2O)2]n•2H2O}n (1) and [Cd2(3-ptz)2Cl2]n (2), based on in situ synthesized 5-(3-pyridyl)tetrazolate (3-ptz−) organic ligand. They have been structurally characterized by elemental analysis (EA), infrared spectroscopy (IR) and single-crystal/powder X-ray diffraction (PXRD). In 1, two Zn(II) ions are linked together through two µ2-(3-ptz−) ligands to form a dimeric unit of [Zn(µ2-3-ptz)(H2O)2]22+, which is further connected with other equivalent units by µ2-bdc2− spacers, resulting in an infinite 1D polymeric chain of [Zn2(3-ptz)2(H2O)2(bdc)]n, and then strong hydrogen bonding interactions extend these 1D chains into a 3D supramolecular structure. In 2, the Cd(II) ions are connected through µ4-(3-ptz−) ligands and Cl− anions, leading to infinite 2D layers of [Cd2(3-ptz)Cl2]nn+, which are further linked by another µ4-(3-ptz−) pillared ligand to form a 3D layered-pillared framework architecture of [Cd2(3-ptz)2Cl2]n. Furthermore, thermal stability of these compounds was measured by thermogravimetric analysis (TGA) and their photoluminescent properties were also investigated in the solid state at room temperature.

Key words： coordination polymers 5-(3-pyridyl)tetrazole crystal structure fluorescence

收稿日期: 2015-06-23 出版日期: 2016-03-11

基金资助:

This work was supported by the National Natural Science Foundation of China (No. 21071099), Natural Science Foundation
of Guangdong Province (No. 2015A030313750), and Characteristic Innovation Projects Guangdong Provincial Department of Education (Natural Science Category, 2014KTSCX169)

通讯作者: lwg@sgu.edu.cn E-mail: luwenguan@aliyun.com

引用本文:

卢文贯;王小兵;刘宏文;洪显兰. Two Coordination Polymers Constructed by Cd(II) and Zn(II) with in situ Generated 5-(3-Pyridyl)tetrazolate Ligand: Syntheses, Crystal Structures and Luminescence Properties[J]. 结构化学, 2016, 35(3): 383-391.
LU Wen-Guan;WANG Xiao-Bing;LIU Hong-Wen;HONG Xian-Lan. Two Coordination Polymers Constructed by Cd(II) and Zn(II) with in situ Generated 5-(3-Pyridyl)tetrazolate Ligand: Syntheses, Crystal Structures and Luminescence Properties. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 35(3): 383-391.

链接本文:

http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2016/V35/I3/383

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