Why does a para-amino group make the green fluorescent protein chromophore non-fluorescent: Coherent intramolecular charge transfer reduces the Z/e-photoisomerization barrier

Yi Hui Chen, Robert Sung, Kuang-Sen Sung

Research output: Contribution to journalArticle

Abstract

A para-N-phenyl-amino group significantly increases the fluorescence quantum yield of N-phenyl-4-aminostilbene by the "amino conjugation effect", but, in contrast, a para-amino group in the para-amino analogue (p-ABDI) of the green fluorescent protein (GFP) chromophore makes p-ABDI non-fluorescent because the coherent photo-induced intramolecular charge transfer reduces the barrier of the Z/E-photoisomerization.

Original languageEnglish
Pages (from-to)8991-8994
Number of pages4
JournalChemical Communications
Volume55
Issue number61
DOIs
Publication statusPublished - 2019 Jan 1

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Photoisomerization
Quantum yield
Chromophores
Green Fluorescent Proteins
Charge transfer
Fluorescence
Proteins
4-aminostilbene

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

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