Diamino-Terephthalonitrile-based Single Benzene Fluorophores Featuring Strong Solution State Fluorescence and Large Stokes Shifts.
J Org Chem
; 88(22): 15708-15716, 2023 Nov 17.
Article
em En
| MEDLINE
| ID: mdl-37931905
ABSTRACT
1°- and 2°-amines react with tetrafluoroterephthalonitrile through SNAr chemistry, creating the strongly emissive para-diamino-terephthalonitrile type single benzene fluorophores. The regioselectivity of reaction is dictated by the sterics of the initial secondary amine adduct. The molecules exhibit strong green-yellow emission and large (nearly 150 nm) Stokes shifts. Excited state analysis reveals a cooperative effect between the para-positioned amino groups through the electron-poor terephthalonitrile unit resulting in the fluorescence amplification.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
J Org Chem
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Índia
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA