Multiple fluorescence of tetraarylimidazole and azomethinocoumarin dyad with dual excited-state intramolecular proton transfer
Sign Up to like & getrecommendations! Published in 2020 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2020.108716
Abstract: Abstract Synthesis and structure of novel dyad which molecule includes two fluorophores - 1,2,4,5-tetraarylimidazole and 8-arylazomethino-7-hydroxycoumarin, are described with the aim to obtain compounds with tunable luminescence. The fluorescent excited states of both fluorofores are… read more here.
Keywords: state; state intramolecular; excited state; fluorescence ... See more keywords
Excited state intramolecular proton transfer involving a four-membered system: Photophysical exploration of an isoindole fused imidazole system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2017.02.064
Abstract: Abstract The spectral behaviour of a pharmaceutically important molecule, 1-(2-Hydroxy-5-bromo-phenyl)-3,5-dioxo-1 H -imidazo-[3,4- b ] isoindole (ADBR), has been reported. The photophysical properties of ADBR reveal the occurrence of excited state intramolecular proton transfer (ESIPT) phenomenon… read more here.
Keywords: state; state intramolecular; excited state; system ... See more keywords
Under different solvents excited-state intramolecular proton transfer mechanism and solvatochromic effect of 2-(2-hydroxyphenyl) benzothiazole molecule
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2018.10.077
Abstract: Abstract 2-(2-Hydroxyphenyl) benzothiazole molecule was synthesized in experiment (Xu et al., 2017), under solvent environments molecular photophysical phenomena were observed, while this experimental work failed to qualitatively unveil the effect of solvent environments on photophysical… read more here.
Keywords: excited state; different solvents; state intramolecular; proton transfer ... See more keywords
Speed tunability of the excited-state intramolecular proton transfer process based on seven-membered ring pyrrole-indole H-bond systems
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.110887
Abstract: Abstract A speed tunable excited-state intramolecular proton transfer (ESIPT) system featuring a seven-membered ring, -NH- type hydrogen bonding pyrrole-indole moiety based on ‘naked’ diazaborepins (NDABs) was exhibited. In this paper, the speed of ESIPT process… read more here.
Keywords: excited state; state; state intramolecular; seven membered ... See more keywords
Excited state intramolecular proton transfer process in benzazole fluorophores tailored by polymeric matrix: A combined theoretical and experimental study
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.111710
Abstract: Abstract The effects of the polymeric matrix on the photophysical properties of monomeric dyes reactive to Excited State Intramolecular Proton Transfer (ESIPT) were evaluated by UV–Vis absorption and steady-state and time-resolved emission spectroscopies. A radical… read more here.
Keywords: state; state intramolecular; excited state; polymeric matrix ... See more keywords
Oxazoline as acceptor moiety for excited-state intramolecular proton transfer
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron"
DOI: 10.1016/j.tet.2018.10.019
Abstract: Abstract Excited state intramolecular proton transfer (ESIPT) is a widespread phenomenon that has been exploited in several analytical and technological applications. Here we describe the synthesis of two ESIPT-active halogen-substituted naphthol-oxazolines that can be conveniently… read more here.
Keywords: state intramolecular; excited state; proton transfer; intramolecular proton ... See more keywords
Aerobic C(sp2)-H Hydroxylations of 2-Aryloxazolines: Fast Access to Excited-State Intramolecular Proton Transfer (ESIPT)-Based Luminophores.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b01350
Abstract: The direct hydroxylation of 2-aryloxazolines via a deprotonative magnesiation using TMPMgCl·LiCl and subsequent oxidation with molecular oxygen or air as a green oxidant is reported. This method proceeds under mild conditions at room temperature with… read more here.
Keywords: state intramolecular; excited state; proton transfer; intramolecular proton ... See more keywords
Precise Manipulation of Excited-State Intramolecular Proton Transfer via Incorporating Charge Transfer toward High-Performance Film-Based Fluorescence Sensing.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c13843
Abstract: Excited-state intramolecular proton transfer (ESIPT) has been widely employed for the design of a variety of functionality-led molecular systems. However, precise manipulation of the excited-state reaction is challenging. Herein, we report a new tactic for… read more here.
Keywords: state; transfer; intramolecular proton; state intramolecular ... See more keywords
The excited-state intramolecular proton transfer properties of three imine-linked two-dimensional porous organic polymers
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Chemistry C"
DOI: 10.1039/c7tc00123a
Abstract: We report the synthesis and excited-state intramolecular proton transfer (ESIPT) properties of three tris(N-salicylideneaniline)-based (TSA) imine-linked porous organic polymers (POPs) containing C3-symmetric 1,3,5-triarylbenzene (TAB), -tristyrylbenzene (TSB), and -tris(arylethynyl)benzene (TAE) monomer units. The TSA–POPs are fluorescent… read more here.
Keywords: state; state intramolecular; excited state; intramolecular proton ... See more keywords
A novel 3-hydroxychromone fluorescent probe for hydrogen sulfide based on an excited-state intramolecular proton transfer mechanism
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Chemistry"
DOI: 10.1039/c8nj01626g
Abstract: Hydrogen sulfide (H2S) is a signaling gasotransmitter that plays important roles in modulating the functions of different systems. We have designed and synthesized a 3-hydroxychromone-based fluorescent probe A for H2S detection. Probe A is based… read more here.
Keywords: fluorescent probe; excited state; state intramolecular; probe ... See more keywords
The effect of different environments on excited-state intramolecular proton transfer in 4′-methoxy-3-hydroxyflavone
Sign Up to like & getrecommendations! Published in 2019 at "Organic Chemistry Frontiers"
DOI: 10.1039/c8qo01111g
Abstract: Excited state intramolecular proton transfer reaction occurs with increasing difficulty in the solvents tested in the order toluene → ACN → DMF. read more here.
Keywords: excited state; proton transfer; state intramolecular; intramolecular proton ... See more keywords