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

Yi Hui Chen, Robert Sung, Kuangsen Sung

研究成果: Article

摘要

A strong π-donating group like p-NMe2 dramatically changes the excited-state behavior of the green fluorescent protein (GFP) chromophore, such as realizing charge-transfer absorption and executing significant photoinduced intramolecular charge transfer (ICT), which makes a planar first singlet (S1) excited-state minimum disappear and significantly lowers the S1 excited-state potential energy surface (PES), leading to barrierless τ-torsion and φ-torsion excited-state relaxation and eliciting the φ-torsion S1 excited-state minimum. This finding is critical since a strong π-donating group like p-NMe2 may do the same things to other fluorophores.

原文English
頁(從 - 到)2424-2428
頁數5
期刊Physical Chemistry Chemical Physics
22
發行號4
DOIs
出版狀態Published - 2020 一月 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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