title: Highly Selective Sensing of Li+in H2O/CH3CN via Fluorescence 'Turn-on' Response of a Coumarin-Indole Linked Dyad: an Experimental and Theoretical Study.
abstract: A coumarin-indole dyad, N-((7-hydroxy-2-oxo-2H-chromen-4-yl)methyl)-1H-indole-2-carboxamide has been synthesized and characterized by1H-NMR and13C-NMR. Effect of various metal ions on fluorescent behavior was also studied. The synthesized compound showed remarkable specificity towards Li+in organo-aqueous medium over other metal ions. Coordination of the compound with Li+induces a turn-on fluorescence response. The sensor exhibited good binding constant and low detection limit towards Li+. Experimental results have been verified with Density Functional Theory and Time Dependent Density Functional Theory calculations.
authors: Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan, 333 031, India.
authors: Santosh
authors: S
authors: Kumari
authors: Department of Pathophysiology, Charles University, Prague, Czech Republic.
authors: Sunita
authors: S
authors: Joshi
authors: Department of Chemistry, Ben-Gurion University, Negev, Israel.
authors: Amrit
authors: A
authors: Sarmah
authors: Department of Physics, Birla Institute of Technology and Science, Pilani, Rajasthan, 333031, India.
authors: Debi
authors: D
authors: Pant
authors: Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan, 333 031, India. sakhuja.rajeev@gmail.com.
authors: Rajeev
authors: R
authors: Sakhuja
keywords: Coumarin; DFT; Fluorescence; Indole; Lithium; Sensor