A Stable Luminescent MOF Constructed by Bis-(4-pyridyl)thiazolo[5,4-d]thiazole Containing Multi-electron Donor-acceptor Core

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摘要 Constructed from 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole (Py2TTz), sulfate anions and metal ions Cd(II), a new 3D luminescent metal-organic framework (LMOF) with good water stability is synthesized under solvothermal condition. [Cd(Py2TTz)(SO4)]n (Py2TTz = 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole). It crystallizes in tetragonal space group P4(_)21m with a = 6.830(3), b = 6.830(3), c = 17.676(12) Å, V = 824.5(8) Å3, Z = 4, Mr = 504.83, Dc = 2.033 g·cm-3, F(000) = 496, GOOF = 1.088, the final R = 0.0434 and wR = 0.0948 for 6301 reflections with I > 2σ(I). Upon excitation at 370 nm, the emission peak of the compound appears at 455 nm, which has a slight redshift compared to the free ligand Py2TTz. The compound has potential to be a luminescence sensing material.

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	李增辉
	贺亮
	郭毓军
	罗明部
	林启普

关键词 ： thiazolo-thiazole, X-ray crystallography, water-stability, luminescence

Abstract：Constructed from 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole (Py2TTz), sulfate anions and metal ions Cd(II), a new 3D luminescent metal-organic framework (LMOF) with good water stability is synthesized under solvothermal condition. [Cd(Py2TTz)(SO4)]n (Py2TTz = 2,5-bis(4-pyridyl) thiazolo[5,4-d]thiazole). It crystallizes in tetragonal space group P4(_)21m with a = 6.830(3), b = 6.830(3), c = 17.676(12) Å, V = 824.5(8) Å3, Z = 4, Mr = 504.83, Dc = 2.033 g·cm-3, F(000) = 496, GOOF = 1.088, the final R = 0.0434 and wR = 0.0948 for 6301 reflections with I > 2σ(I). Upon excitation at 370 nm, the emission peak of the compound appears at 455 nm, which has a slight redshift compared to the free ligand Py2TTz. The compound has potential to be a luminescence sensing material.

Key words： thiazolo-thiazole X-ray crystallography water-stability luminescence

收稿日期: 2020-09-24 出版日期: 2021-05-07

基金资助:This research was supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDB20000000) and the Hundred-talent Program of Fujian Province and Chinese Academic of Sciences Fujian Institute of Research on the Structure of Matter

通讯作者: linqipu@fjirsm.ac.cn E-mail: linqipu@fjirsm.ac.cn

引用本文:

李增辉;贺亮;郭毓军;罗明部;林启普. A Stable Luminescent MOF Constructed by Bis-(4-pyridyl)thiazolo[5,4-d]thiazole Containing Multi-electron Donor-acceptor Core[J]. 结构化学, 2021, 40(5): 610-614.
LI Zeng-Hui;HE Liang;GUO Yu-Jun;LUO Ming-Bu;LIN Qi-Pu. A Stable Luminescent MOF Constructed by Bis-(4-pyridyl)thiazolo[5,4-d]thiazole Containing Multi-electron Donor-acceptor Core. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2021, 40(5): 610-614.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2021/V40/I5/610

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