Bile Salt‐Derived Eu3+ Organogel and Hydrogel: Water‐Enhanced Luminescence of Eu3+ in a Gel Matrix. Issue 2 (9th January 2018)

• Record Type: Journal Article
• Authors: Laishram, Raju; Maitra, Uday
• Is Part Of: ChemistrySelect. Volume 3:Issue 2(2018)
• Page Start: 519
• Page End: 523
• Publication Date: 2018-01-09
• Subjects: Bile Salts -- Energy transfer -- Lanthanides -- Luminescence -- Supramolecular; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201701013
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Eu 3+ was found to form gel with cholate in methanol and comparative study was done with the hydrogel. Water is a well known quencher of Eu 3+ luminescence, and its quenching rate constant is higher than that of MeOH. In a Eu 3+ derived luminescent material, therefore, the replacement of water by methanol should lead to enhanced Eu 3+ luminescence. However, significant pyrene‐mediated sensitizatized luminescence of Eu 3+ was observed in a Eu 3+ cholate hydrogel, but not in the methanolic gel . We provide experimental data that rationalize this apparent paradox. Abstract : EuCh was found to form gel in both methanol and water. Water is known to quenched Eu 3+ luminescence, but in the present system, we found that emission/sensitization of Eu 3+ was seen only in hydrogel and not in methanolic gel.