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模板分子对一系列基于2-硝基对苯二甲酸配体的多孔铽基金属有机框架材料的结构和发光强度的影响。

Effects of template molecules on the structures and luminescence intensities of a series of porous Tb-MOFs based on the 2-nitroterephthalate ligand.

作者信息

Ren Yi-Xia, Zhao Xiao-Long, Wang Zhi-Xiang, Pan Yong, Li Hui-Ping, Wang Fei-Yan, Zhu Shao-Feng, Shao Chen-Hui

机构信息

College of Chemistry and Chemical Engineering, Laboratory of New Energy and New Function Materials, Yan'an University Yan'an 716000 P. R. China

出版信息

RSC Adv. 2018 May 14;8(31):17497-17503. doi: 10.1039/c8ra01224e. eCollection 2018 May 9.

DOI:10.1039/c8ra01224e
PMID:35539245
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9080421/
Abstract

Four novel porous Tb(iii) metal-organic frameworks (Tb-MOFs) have been designed and prepared hydrothermally from 2-nitroterephthalate (2-Hntp), namely {[Tb(2-ntp)(HO)]·HO} (1), {[Tb(2-ntp)(HO)]·4,4'-Hbipy} (2), {[Tb(2-ntp)(HO)]·2,4-Hbipy} (3), and {[Tb(2-ntp)(HO)]·(1,4-Hbbi)} (4) (4,4'-bipy = 4,4'-bipyridine; 2,4-bipy = 2,4-bipyridine; 1,4-bbi = 1,4-bisbenzimidazole). X-ray diffraction structural analyses show these Tb-MOFs are porous and are based on Tb ions and 2-nitroterephthalate, in which water molecules (1) or protonated N-donor ligands (2-4) exist as templates. The fluorescence properties of complexes 1-4 could be associated with the characteristic peaks of Tb(iii) ions, and the existence of different guest molecules affects the intensities of peaks, which means that these could be potential fluorescence materials, with intensities adjusted using guests.

摘要

通过水热法从2-硝基对苯二甲酸（2-Hntp）设计并制备了四种新型多孔铽（III）金属有机框架材料（Tb-MOFs），即{[Tb(2-ntp)(H₂O)]·H₂O} (1)、{[Tb(2-ntp)(H₂O)]·4,4'-Hbipy} (2)、{[Tb(2-ntp)(H₂O)]·2,4-Hbipy} (3) 和 {[Tb(2-ntp)(H₂O)]·(1,4-Hbbi)} (4)（4,4'-bipy = 4,4'-联吡啶；2,4-bipy = 2,4-联吡啶；1,4-bbi = 1,4-双苯并咪唑）。X射线衍射结构分析表明，这些Tb-MOFs是多孔的，基于Tb离子和2-硝基对苯二甲酸，其中水分子（1）或质子化的含氮供体配体（2-4）作为模板存在。配合物1-4的荧光性质可能与Tb（III）离子的特征峰有关，不同客体分子的存在会影响峰的强度，这意味着它们可能是潜在的荧光材料，其强度可通过客体进行调节。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a663/9080421/27cb8288c73b/c8ra01224e-f9.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a663/9080421/ca460e131c17/c8ra01224e-c1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a663/9080421/02be989cc708/c8ra01224e-f7.jpg
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