Extremely stable europium-organic framework for luminescent sensing of Cr2O72− and Fe3+ in aqueous systems. Issue 35 (3rd August 2018)

• Record Type: Journal Article
• Authors: Gai, Yan-Li; Guo, Qin; Zhao, Xue-Yan; Chen, Yan; Liu, Shan; Zhang, Yuan; Zhuo, Chun-Xue; Yao, Cui; Xiong, Ke-Cai
• Is Part Of: Dalton transactions. Volume 47:Issue 35(2018)
• Page Start: 12051
• Page End: 12055
• Publication Date: 2018-08-03
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c8dt02313a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A novel Eu-MOF which is extremely stable in an aqueous system over a wide pH range is reported as a dual functional Cr2 O7 2− and Fe 3+ sensor in aqueous environments. Abstract : Three novel 3D lanthanide–organic frameworks, namely [Ln2 L(1, 3-bdc)3 ]·5H2 O (Ln: Eu, Sm and Dy), with a 4 12 ·6 3 topology based on a zwitterionic ligand, 4-bis(4-carboxylatopyridinium-1-methylene)benzene dichloride (H2 LCl2 ), and 1, 3-benzene dicarboxylic acid (1, 3-H2 bdc) have been synthesized hydrothermally. Notably, the Ln-MOFs are extremely stable in an aqueous system and are capable of resisting acids or bases over a wide pH range from 3 to 11. Meanwhile, an Eu-MOF is further proven to be a promising dual sensor in an aqueous system toward Cr2 O7 2− and Fe 3+ .