scholarly journals Facile Synthesis of an Organic Solid State Near-Infrared-Emitter with Large Stokes Shift via Excited-State Intramolecular Proton Transfer

ACS Omega ◽  
2018 ◽  
Vol 3 (10) ◽  
pp. 14341-14348 ◽  
Author(s):  
Abhishek Kumar Gupta ◽  
Ashwani Kumar ◽  
Ranjit Singh ◽  
Manisha Devi ◽  
Abhimanew Dhir ◽  
...  
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Near Infrared ◽  
Stokes Shift ◽  
Intramolecular Proton Transfer ◽  
Facile Synthesis ◽  
Large Stokes Shift ◽  
Organic Solid ◽  
Infrared Emitter

Near-infrared fluorescent dyes with large Stokes shifts: light generation in BODIPYs undergoing excited state intramolecular proton transfer

2017 ◽  
Vol 15 (19) ◽  
pp. 4072-4076 ◽  
Author(s):  
Qiang Fei ◽  
Xianfeng Gu ◽  
Yajing Liu ◽  
Ben Shi ◽  
Hengyan Liu ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Near Infrared ◽  
Fluorescent Dyes ◽  
Stokes Shift ◽  
Intramolecular Proton Transfer ◽  
Large Stokes Shift ◽  
Light Generation ◽  
Stokes Shifts

New ESIPT-based BODIPYs are developed to render the NIR emissions with a large Stokes shift.

scholarly journals An NIR-emitting lysosome-targeting probe with large Stokes shift via coupling cyanine and excited-state intramolecular proton transfer

2017 ◽  
Vol 53 (26) ◽  
pp. 3697-3700 ◽  
Author(s):  
Dipendra Dahal ◽  
Lucas McDonald ◽  
Xiaoman Bi ◽  
Chathura Abeywickrama ◽  
Farai Gombedza ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Stokes Shift ◽  
Intramolecular Proton Transfer ◽  
Large Stokes Shift

A NIR-emitting probe with a large Stokes shift (Δλ ≈ 234 nm) can selectively show lysosome organelles without exhibiting “an alkalinizing effect”.

A novel 2-(2′-aminophenyl)benzothiazole derivative displays ESIPT and permits selective detection of Zn2+ ions: experimental and theoretical studies

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71496-71500 ◽  
Author(s):  
Subramaniyan Janakipriya ◽  
Selvaraj Tamilmani ◽  
Sathiah Thennarasu
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Stokes Shift ◽  
Intramolecular Proton Transfer ◽  
Theoretical Studies ◽  
Selective Detection ◽  
Large Stokes Shift ◽  
Benzothiazole Derivative ◽  
Experimental And Theoretical Studies

Synthesis of a novel 2-(2′-aminophenyl)benzothiazole based probe (1) and demonstration of excited state intramolecular proton transfer (ESIPT) with a large Stokes shift (∼246 nm) are presented.

Self-absorption-free excited-state intramolecular proton transfer (ESIPT) emitters for high brightness and luminous efficiency organic fluorescent electroluminescent devices

2021 ◽  
Author(s):  
Jakkapan Kumsampao ◽  
Chaiyon Chaiwai ◽  
Chatatrika Sukpattanacharoen ◽  
Thanyarat Chawanpunyawat ◽  
Phattananawee Nalaoh ◽  
...  
Keyword(s):  
Optical Properties ◽  
Excited State ◽  
Proton Transfer ◽  
Stokes Shift ◽  
Intramolecular Proton Transfer ◽  
Luminous Efficiency ◽  
Attractive Feature ◽  
High Brightness ◽  
Electroluminescent Devices ◽  
Large Stokes Shift

Excited-state intramolecular proton transfer (ESIPT) chromophores with an attractive feature of a large Stokes shift in optical properties have been exceedingly considered as prime candidates for various applications. However, as...

scholarly journals The development of aryl-substituted 2-phenylimidazo[1,2-a]pyridines (PIP) with various colors of excited-state intramolecular proton transfer (ESIPT) luminescence in the solid state

2016 ◽  
Vol 4 (16) ◽  
pp. 3599-3606 ◽  
Author(s):  
Toshiki Mutai ◽  
Tatsuya Ohkawa ◽  
Hideaki Shono ◽  
Koji Araki
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aryl Group ◽  
Red Emission ◽  
Wide Range

The color of ESIPT luminescence of HPIP is tuned in a wide range by the introduction of aryl group(s), and thus a series of PIPs showing blue to red emission is realized.

scholarly journals Nitrile-Substituted 2-(Oxazolinyl)-Phenols: Minimalistic Excited-State Intramolecular Proton Transfer (ESIPT)-Based Fluorophores

2020 ◽  
Author(s):  
Dominik Göbel ◽  
Daniel Duvinage ◽  
Tim Stauch ◽  
Boris Nachtsheim
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Density Functional ◽  
Intramolecular Proton Transfer ◽  
Crystal Structure Analysis ◽  
Quantum Yields ◽  
Functional Theory ◽  
Emission Properties ◽  
Emission Enhancement

Herein, we present minimalistic single-benzene, excited-state intramolecular proton transfer (ESIPT) based fluorophores as powerful solid state emitters. The very simple synthesis gave access to all four regioisomers of nitrile-substituted 2(oxazolinyl)phenols (MW = 216.1). In respect of their emission properties they can be divided into aggregation-induced emission enhancement (AIEE) luminophores (1-CN and 2-CN), dual state emission (DSE) emitters (3-CN) and aggregation-caused quenching (ACQ) fluorophores (4‐CN). Remarkably, with compound 1-CN we discovered a minimalistic ESIPT based fluorophore with extremely high quantum yield in the solid state ΦF = 87.3% at λem = 491 nm. Furthermore, quantum yields in solution were determined up to ΦF = 63.0%, combined with Stokes shifts up till 11.300 cm–1. Temperature dependent emission mapping, crystal structure analysis and time-dependent density functional theory (TDDFT) calculations gave deep insight into the origin of the emission properties.<br>

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