A multi-functional Tb-organic network featuring high selectivity fluorescent sensing for Fe3+, Cr2O72−, tetracycline and 2,4,6-trinitrophenol in aqueous solution

• Published in: Journal of solid state chemistry 2022-05, Vol.309, p.123002, Article 123002
• Main Authors: Gao, Ting, Ren, Yixia, Wang, Zhixiang, Zhang, Meili, Cao, Jia, Wang, Jijiang
• Format: Article
• Language: English
• Subjects: Crystal structure; Fluorescent sensing properties; Tb (III) complex
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2022.123002

A novel two-dimensional Tb(III)-organic network, named as [Tb2(pyia)3 (phen)2(H2O)]·H2O(1), based on 5-(pyridine-2-ylmethoxy) isophthalic acid (H2pyia) and 1,10-phenanthroline (phen) has been synthesized hydrothermally. Structural analysis shows 1 exhibits two-dimensional network featuring the paddle-wheel binuclear secondary building units [Tb2(COO)4]2-. Fluorescent sensing properties exhibit 1 has been discovered to high selectively and sensitively detect Fe3+ ion (328 ​nM), Cr2O72− anion (526 ​nM), tetracycline (74.8 ​nM) and 2,4,6-trinitrophenol (80 ​nM) with the lower LOD values. Therefore, complex 1 might be used as a multi-response luminescent sensor material. A new two-dimensional Tb(III)-organic network featuring the paddle-wheel binuclear secondary building units [Tb2(COO)4]2-. The complex might be used as a multi-response luminescent sensor material for its excellent fluorescent sensing properties of high selectively and sensitively detecting Fe3+ ion (328 ​nM), Cr2O72− anion (526 ​nM), tetracycline (74.8 ​nM) and 2,4,6-trinitrophenol (80 ​nM) with the lower LOD values. [Display omitted] •A multi-functional 2D Tb(III)-organic network based on 5-(pyridine-2-ylmethoxy) isophthalic acid with 1,10-phenanthroline.•The excellent fluorescent properties of Tb(III) complex in solid state or in aqueous solution.•Highly sensitively detection for Fe3+ ion, Cr2O72− anion, tetracycline and 2,4,6-trinitrophenol with the lower LOD values in aqueous solution.