A New Co(II) Coordination Compound Constructed by Tripyridyltriazole and Pyromellitic Acid: Synthesis,Crystal Structure and Antifungal Activity

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摘要

A new coordination compound, [Co(L223)2(H2O)2]•H2pm (1, L223 = 3,4-bis(2-pyrid- yl)-5-(3-pyridyl)-1,2,4-triazole and H4pm = pyromellitic acid), has been synthesized. The structure of complex 1 has been characterized by X-ray single-crystal diffraction, elemental analysis, IR spectrum analysis and thermogravimetric analysis. Single-crystal X-ray diffraction analysis reveals that complex 1 belongs to the triclinic system, space group P with a = 10.2470(8), b = 10.2879(9), c = 10.2951(11) Å,  = 109.398(2),  = 97.6590(10),  = 95.3260(10)°, V = 1003.60(16) Å3, Z = 1, Dc = 1.565 g/cm3,  = 0.508 mm-1, Mr = 945.73, F(000) = 485, the final R = 0.0562 and wR = 0.0783 with I > 2(I). Two L223 as chelating ligands link one Co(II) ion to form a 0D motif. Furthermore, the 0D motifs are linked into a 2D coordination pattern with hydrogen bonds. In addition, the antifungal effects of the ligand and the complex were evaluated by the disc diffusion method against Colletotrichum gloeosporioides Penz. 1 represents antifungal activity with high levels of inhibitory potency which is larger than the corresponding ligand.

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	任建林
	靳晓东
	邱静茹
	梁宏姣
	李冰

关键词 ： 3,4-bis(2-pyridyl)-5-(3-pyridyl)-1,2,4-triazole, crystal structure, thermogravimetric analysis, antifungal activity

Abstract：A new coordination compound, [Co(L223)2(H2O)2]•H2pm (1, L223 = 3,4-bis(2-pyrid- yl)-5-(3-pyridyl)-1,2,4-triazole and H4pm = pyromellitic acid), has been synthesized. The structure of complex 1 has been characterized by X-ray single-crystal diffraction, elemental analysis, IR spectrum analysis and thermogravimetric analysis. Single-crystal X-ray diffraction analysis reveals that complex 1 belongs to the triclinic system, space group P with a = 10.2470(8), b = 10.2879(9), c = 10.2951(11) Å,  = 109.398(2),  = 97.6590(10),  = 95.3260(10)°, V = 1003.60(16) Å3, Z = 1, Dc = 1.565 g/cm3,  = 0.508 mm-1, Mr = 945.73, F(000) = 485, the final R = 0.0562 and wR = 0.0783 with I > 2(I). Two L223 as chelating ligands link one Co(II) ion to form a 0D motif. Furthermore, the 0D motifs are linked into a 2D coordination pattern with hydrogen bonds. In addition, the antifungal effects of the ligand and the complex were evaluated by the disc diffusion method against Colletotrichum gloeosporioides Penz. 1 represents antifungal activity with high levels of inhibitory potency which is larger than the corresponding ligand.

Key words： 3,4-bis(2-pyridyl)-5-(3-pyridyl)-1,2,4-triazole crystal structure thermogravimetric analysis antifungal activity

收稿日期: 2016-05-13 出版日期: 2017-01-12

基金资助:

Supported by the Natural Science Foundation of Ningxia (No. NZ15015)

通讯作者: nxdaxue@126.com (Li Bing) E-mail: nxdaxue@126.com (Li Bing)

引用本文:

任建林;靳晓东;邱静茹;梁宏姣;李冰. A New Co(II) Coordination Compound Constructed by Tripyridyltriazole and Pyromellitic Acid: Synthesis,Crystal Structure and Antifungal Activity[J]. 结构化学, 2017, 36(1): 33-39.
REN Jian-Lin;JIN Xiao-Dong;QIU Jing-Ru;LIANG Hong-Jiao;LI Bing. A New Co(II) Coordination Compound Constructed by Tripyridyltriazole and Pyromellitic Acid: Synthesis,Crystal Structure and Antifungal Activity. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2017, 36(1): 33-39.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2017/V36/I1/33

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