Articles with "esipt" as a keyword



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Recent Advances in Smart Sensing Based on Excited‐State Intramolecular Proton‐Transfer (ESIPT)‐Inspired Emitters

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Published in 2024 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.202400572

Abstract: The optical materials based on excited state intramolecular proton transfer (ESIPT) have garnered significant attention due to their unique photophysical properties and applications in sensors and imaging agents (probes). These materials exhibit an intrinsic four‐level… read more here.

Keywords: proton transfer; intramolecular proton; excited state; state intramolecular ... See more keywords

ESIPT mechanism of the HPQRB fluorescent probe and its ratiometric detection of SO2

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Published in 2025 at "Journal of the Chinese Chemical Society"

DOI: 10.1002/jccs.70074

Abstract: A large amount of SO2 produced by large ships during fuel burning is a serious threat to people's health. It is urgently required to develop a method of detection with rapid response time and low… read more here.

Keywords: detection; hpqrb hso3; fluorescent probe; hpqrb ... See more keywords

Theoretical explorations about the excited state behaviors for two novel high efficient ESIPT compounds

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Published in 2018 at "Structural Chemistry"

DOI: 10.1007/s11224-018-1165-6

Abstract: Two high efficient excited state intramolecular proton transfer (ESIPT) compounds (i.e., 3-(5-([1,1′-biphenyl]-4-yl)oxazol-2-yl)-4′-(N,N-diphenylamino)-[1,1′-biphenyl]-4-ol (1) and 4′-(N,N-diphenylamino)-3-(5-(4′-(diphenylamino)-[1,1′-biphenyl]-4-yl)oxazol-2-yl)-5-methyl-[1,1′-biphenyl]-4-ol (2)) are explored theoretically. Based on DFT and time-dependent DFT (TDDFT) methods, we investigate the hydrogen bonding interactions and ESIPT… read more here.

Keywords: state; esipt; excited state; high efficient ... See more keywords

Fate of protected HBT based chemodosimeters after undergoing deprotection: Restoration of ESIPT or generation of emissive phenoxide?

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Published in 2019 at "Chemical Physics"

DOI: 10.1016/j.chemphys.2019.01.008

Abstract: Abstract The -OH group protected 2-(hydroxyphenyl) benzothiazole (HBT) based ratiometric chemodosimeters have previously been reported to undergo regeneration of excited state intramolecular proton transfer (ESIPT) process upon deprotection. In the current work it is demonstrated… read more here.

Keywords: esipt; deprotection; generation; hbt ... See more keywords
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Highly sensitive and selective ESIPT-based fluorescent probes for detection of Pd2+ with large Stocks shifts

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Published in 2017 at "Dyes and Pigments"

DOI: 10.1016/j.dyepig.2017.01.063

Abstract: Abstract Highly sensitive and selective fluorescent probes 1 and 2 for detection of palladium ions (Pd 2+ ) were synthesized based on excited-state intramolecular proton transfer process (ESIPT) using 2-(2′-hydroxy-)benzothiazole moiety. Different metal ions were… read more here.

Keywords: esipt; detection; sensitive selective; highly sensitive ... See more keywords

ESIPT Fluorescent Chromism and Conformational Change of 3-(2-Benzothiazolyl)-4-hydroxy-benzenesulfonic acid by Amine Sorption

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Published in 2018 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.8b03248

Abstract: Sulfonic acid (−SO3H)-substituted 2-(2′-hydroxyphenyl)benzothiazole (1) was designed as a new solid-state ESIPT (excited-state intramolecular proton transfer) fluorescent chromic molecule that responds to various types of organic bases and amines as a sensing device of biologically… read more here.

Keywords: esipt; chromism conformational; fluorescent chromism; esipt fluorescent ... See more keywords
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A Synergistically Enhanced Near-Infrared ESIPT Fluorescent Probe for High-Performance In Situ Imaging of Cellular Apoptosis.

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Published in 2025 at "Molecular pharmaceutics"

DOI: 10.1021/acs.molpharmaceut.5c00615

Abstract: Monitoring apoptotic progression is critical for tracking disease development and evaluating therapeutic interventions. Fluorescent probes that integrate aggregation-induced emission (AIE) and excited-state intramolecular proton transfer (ESIPT) offer some advantages, including large Stokes shifts, high quantum… read more here.

Keywords: synergistically enhanced; fluorescent probe; esipt; caspase ... See more keywords

Coassembly of Dual-Modulated AIE-ESIPT Photosensitizers and UCNPs for Enhanced NIR-Excited Photodynamic Therapy.

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Published in 2024 at "Nano letters"

DOI: 10.1021/acs.nanolett.4c05497

Abstract: Aggregation-induced emission (AIE) photosensitizers are promising for photodynamic therapy, yet their short excitation wavelengths present a limitation. In this study, we develop a series of organic photosensitizers with dual modulation capabilities based on excited-state intramolecular… read more here.

Keywords: nir excited; dual modulated; esipt; coassembly dual ... See more keywords
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Interplay of Dual-Proton Transfer Relay to Achieve Full-Color Panel Luminescence in Excited-State Intramolecular Proton Transfer (ESIPT) Fluorophores.

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Published in 2023 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.2c20129

Abstract: A new design was applied for the facile synthesis of pure organic photoluminescent molecules with dual excited-state intramolecular proton transfer (ESIPT) sites. In this novel class of emitters, full-color panel emission from blue, green, and… read more here.

Keywords: full color; state; transfer; proton transfer ... See more keywords

ESIPT-Active 8-Hydroxyquinoline-Based Fluorescence Sensor for Zn(II) Detection and Aggregation-Induced Emission of the Zn(II) Complex

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c01414

Abstract: A D−π–A type quinoline derivative, 2-(((4-(1, 2, 2-triphenylvinyl)phenyl)imino)methyl)quinolin-8-ol (HL), was synthesized and structurally characterized. The five-membered ring formed by the O–H···N hydrogen bond in HL contributed to the excited-state intramolecular proton transfer (ESIPT) behavior of… read more here.

Keywords: esipt; fluorescence; induced emission; aggregation induced ... See more keywords

Amplified Spontaneous Emission from Zwitterionic Excited-State Intramolecular Proton Transfer.

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Published in 2022 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.2c02163

Abstract: The unique four-level photocycle characteristics of excited-state intramolecular proton transfer (ESIPT) materials enable population inversion and large spectral separation between absorption and emission through their respective enol and keto forms. This leads to minimal or… read more here.

Keywords: proton transfer; esipt; emission; excited state ... See more keywords