title: Synthesis of new ESIPT-fluorescein: photophysics of pH sensitivity and fluorescence.
abstract: ESIPT-inspired benzimidazolyl substituted fluorescein dyes were synthesized. PH-sensitivity was determined by the photophysical property measured at a physiological possible pH range. Fluorescence quantum efficiency values were calculated independently at two different emissions. A rational relationship is defined between fluorescence quantum efficiency and calculated HOMO energy.
authors.affiliation: Institute of Chemical Technology, N. P. Marg, Matunga, Mumbai, 400 019 Maharashtra, India.
authors.forename: Vikas S
authors.initials: VS
authors.lastname: Patil
authors.forename: Vikas S
authors.initials: VS
authors.lastname: Padalkar
authors.forename: Kiran R
authors.initials: KR
authors.lastname: Phatangare
authors.forename: Vinod D
authors.initials: VD
authors.lastname: Gupta
authors.forename: Prashant G
authors.initials: PG
authors.lastname: Umape
authors.forename: Nagaiyan
authors.initials: N
authors.lastname: Sekar
mesh_terms: D001562:Benzimidazoles / Q000138:chemical synthesis*; D019793:Fluorescein / Q000138:chemical synthesis*; D005456:Fluorescent Dyes / Q000138:chemical synthesis*; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D011522:Protons; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013816:Thermodynamics
chemical_list: D001562:Benzimidazoles; D005456:Fluorescent Dyes; D011522:Protons; D019793:Fluorescein