Issue 61, 2019

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

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.

Graphical abstract: Why does a para-amino group make the green fluorescent protein chromophore non-fluorescent: coherent intramolecular charge transfer reduces the Z/E-photoisomerization barrier

Supplementary files

Article information

Article type
Communication
Submitted
30 May 2019
Accepted
01 Jul 2019
First published
01 Jul 2019

Chem. Commun., 2019,55, 8991-8994

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

Y. Chen, R. Sung and K. Sung, Chem. Commun., 2019, 55, 8991 DOI: 10.1039/C9CC04156G

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