Highly stable and sensitive LnMOF ratiometric thermometers constructed with mixed ligands?
Dalton Transactions Pub Date: 2014-12-15 DOI: 10.1039/C4DT03421J
Abstract
The mixed-lanthanide metal–organic frameworks (M'LnMOFs) applied for accurate, non-invasive and self-reference temperature measurements have been only recently recognized. It is a great challenge for chemists to fulfil the requirements of a thermostable structure, intense luminescence and high temperature sensitivity on one LnMOF ratiometric thermometer for thermometric applications. By choosing 2,4-(2,2′:6′,2′′-terpyridin-4′-yl)-benzenedisulfonic acid (H2DSTP) as the first ligand and changing the ancillary ligand to oxalic acid (OA) or 1,4-benzene dicarboxylic acid (BDC), we have successfully developed two types of highly stable and sensitive thermometers [Tb1?xEux(OA)0.5(DSTP)]·3H2O and [Tb1?xEux(BDC)0.5(DSTP)]·2H2O (x = 0.01, 0.02) that in addition exhibit brilliant luminescence over a wide temperature range, providing a new strategy to explore luminescence-based M'LnMOF thermometers.
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Journal Name：Dalton Transactions
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CAS no.: 89640-58-4
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