A multi-responsive luminescent sensor for organic small-molecule pollutants and metal ions based on a 4d-4f metal-organic framework.

Dalton Trans

Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University, Tianjin 300071, China. and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.

Published: March 2017

Two silver(i)-lanthanide(iii) heterometallic-organic frameworks (HMOFs) {[LnAg(BPDC)(OX)(HO)]·7HO} (Ln = Tb (1), Gd (2)) have been synthesized via a mixed ligand approach using 2,2'-bipyridine-3,3'-dicarboxylic acid (HBPDC) and oxalic acid (HOX) under hydrothermal conditions. Single crystal X-ray diffraction studies showed a (3,4,5)-connected new topology of {3·4·5·6}{3·4·5·6·7}{3·5·6·9·10}{4·5·6}{4·5}{4·6}{4·5·6}{4·6}{4·6·8·10}. Luminescence studies showed that the characteristic emissions of Tb ions are observed in HMOF 1 which can be capable of sensing organic small-molecule pollutants and metal ions. In addition, it can also discriminate the isomers of pentanol as well as quantitatively distinguish benzendiamines which are carcinogenic but used for hair coloring.

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Source
http://dx.doi.org/10.1039/c7dt00159bDOI Listing

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