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

2019 ◽  
Vol 55 (61) ◽  
pp. 8991-8994 ◽  
Author(s):  
Yi-Hui Chen ◽  
Robert Sung ◽  
Kuangsen Sung
Keyword(s):  
Charge Transfer ◽  
Green Fluorescent Protein ◽  
Fluorescent Protein ◽  
Intramolecular Charge Transfer ◽  
Amino Group ◽  
Green Fluorescent

The p-NH2 group makes the green fluorescent protein chromophore non-fluorescent because coherent photo-induced intramolecular charge transfer reduces the Z/E-photoisomerization barrier.

Dramatic changes in the excited-state behaviour of the green fluorescent protein chromophore by a strong π-donating group through significantly lowering the excited-state potential energy surface with photoinduced intramolecular charge transfer

2020 ◽  
Vol 22 (4) ◽  
pp. 2424-2428
Author(s):  
Yi-Hui Chen ◽  
Robert Sung ◽  
Kuangsen Sung
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Green Fluorescent Protein ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Energy Surface ◽  
Fluorescent Protein ◽  
Intramolecular Charge Transfer ◽  
State Potential ◽  
Green Fluorescent

A strong π-donating group like p-NMe2 significantly lowers the S1 excited-state potential energy surface of green fluorescent protein chromophore by photoinduced intramolecular charge transfer, dramatically changing its excited-state behavior.

Toward Molecular-Level Characterization of Photoinduced Decarboxylation of the Green Fluorescent Protein: Accessibility of the Charge-Transfer States

2012 ◽  
Vol 8 (6) ◽  
pp. 1912-1920 ◽  
Author(s):  
Bella L. Grigorenko ◽  
Alexander V. Nemukhin ◽  
Dmitry I. Morozov ◽  
Igor V. Polyakov ◽  
Ksenia B. Bravaya ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Green Fluorescent Protein ◽  
Fluorescent Protein ◽  
Molecular Level ◽  
Green Fluorescent
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