A quinoline-based tripodal fluororeceptor for citric acid
摘要:
The quinoline-based tripodal fluororeceptor 1 has been designed and synthesized for the detection of citric acid in less polar solvents. Receptor I shows monomer emission quenching followed by excimer emission upon hydrogen bond-mediated complexation of citric acid. In comparison, receptor 2, in presence of the same acid, gives rise to a decrease in the monomer emission of the naphthyl moiety without showing any peak for the excimer. Receptor 1 is found to bind citric acid more strongly than receptor 2 in CHCl3 (c) 2007 Elsevier Ltd. All rights reserved.
Fluorescence sensing of tartaric acid: a case of excimer emission caused by hydrogen bond-mediated complexation
作者:Kumaresh Ghosh、Suman Adhikari
DOI:10.1016/j.tetlet.2006.03.044
日期:2006.5
A novel quinoline based receptor that shows monomer emission quenching followed by intramolecular excimer emission upon hydrogen bond mediated complexation of tartaric acid has been designed and synthesized. The excimer emission has been used to confirm the selective recognition of tartaric acid over its nonhydroxy analogue, succinic acid. Binding ability was studied by H-1 NMR, UV-vis and fluorescence spectroscopic methods. (c) 2006 Elsevier Ltd. All rights reserved.
Metal ion based chiral fluorescence sensor selective for dihydrogenphosphate
作者:Shyamaprosad Goswami、Debabrata Sen、Nirmal Kumar Das
DOI:10.1016/j.tetlet.2010.10.034
日期:2010.12
A Cu(II) based conformationally restricted chiral fluorescence sensor (receptor 2) has been designed and synthesized for selective sensing of anions. The anion recognition property of the Cu2+-complex has been studied in acetonitrile by fluorescence methods which show remarkable sensitivity toward dihydrogen phosphate via fluorescence modulation of the Cu2+-complex over the other anions examined. (C) 2010 Elsevier Ltd. All rights reserved.
A quinoline-based tripodal fluororeceptor for citric acid
作者:Kumaresh Ghosh、Suman Adhikari
DOI:10.1016/j.tetlet.2007.11.139
日期:2008.1
The quinoline-based tripodal fluororeceptor 1 has been designed and synthesized for the detection of citric acid in less polar solvents. Receptor I shows monomer emission quenching followed by excimer emission upon hydrogen bond-mediated complexation of citric acid. In comparison, receptor 2, in presence of the same acid, gives rise to a decrease in the monomer emission of the naphthyl moiety without showing any peak for the excimer. Receptor 1 is found to bind citric acid more strongly than receptor 2 in CHCl3 (c) 2007 Elsevier Ltd. All rights reserved.
Creatinine recognition using designed synthetic receptors
The receptors contain different heterocyclic moieties for better interactions between host and guest. Among these, 1, 4, and 5 are fluorescent receptors for creatinine. From this study, it was found that the receptors 1 and 4 containing the naphthyridine moiety have higher binding affinity to the guest creatinine than receptors containing other heterocyclic moiety. Theoretical studies for the calculation