Three New Lanthanide Coordination Polymers Constructed from 2,6-Bis(pyrazin-2-yl)pyridine-4-carboxylate:Syntheses, Structures and Luminescence

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Abstract Three new lanthanide coordination polymers [Ln(bppc)2(suc)0.5(H2O)]n·nH2O (Ln = Eu(1), Ln = Dy(2), Ln = Tb(3), Hbppc = 2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate, H2suc = succinic acid) have been hydrothermally synthesized and structurally characterized. These compounds are isostructural and crystallize in triclinic P space group. The Ln(Ⅲ) ions are eight- coordinated with dodecahedral coordination geometry. Ln(Ⅲ) cations are linked by carboxylate groups from (bppc)– ligands to form one-dimensional ring chains, which are further connected by the carboxylate groups of (bppc)– and (suc)2– ligands to extend a 2D layer structure. These coordination polymers display the characteristic emission bands of Ln(Ⅲ) ions in the solid state.

Key words： lanthanide coordination polymers crystal structure luminescence properties

Received: 02 April 2019 Published: 13 April 2020

Fund:Supported by the Key Scientific Research Project of Education Department of Shaanxi Province (17JS027) and the team of syngas catalytic conversion of Shaanxi university of Technology

Corresponding Authors: sj-528@163.com E-mail: sj-528@163.com

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	Articles by authors
	SONG Juan
	DUAN Bo-Feng
	LU Jiu-Fu
	GE Hong-Guang

Cite this article:

SONG Juan,DUAN Bo-Feng,LU Jiu-Fu, et al. Three New Lanthanide Coordination Polymers Constructed from 2,6-Bis(pyrazin-2-yl)pyridine-4-carboxylate:Syntheses, Structures and Luminescence[J]. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2020, 39(4): 793-800.

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http://manu30.magtech.com.cn/jghx/EN/ OR http://manu30.magtech.com.cn/jghx/EN/Y2020/V39/I4/793

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