Ultrafast dynamics of gas-phase excited-state intramolecular proton transfer in 1-hydroxy-2-acetonaphthone

1999 ◽  
Vol 310 (1-2) ◽  
pp. 103-110 ◽  
Author(s):  
Chengii Lu ◽  
Re-Ming R Hsieh ◽  
I-Ren Lee ◽  
Po-Yuan Cheng
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Gas Phase ◽  
Intramolecular Proton Transfer ◽  
Ultrafast Dynamics

Theoretical investigation of 2-(iminomethyl)phenol in the gas phase as a prototype of ultrafast excited-state intramolecular proton transfer

2016 ◽  
Vol 657 ◽  
pp. 113-118 ◽  
Author(s):  
Rathawat Daengngern ◽  
Chanatkran Prommin ◽  
Thanyada Rungrotmongkol ◽  
Vinich Promarak ◽  
Peter Wolschann ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Gas Phase ◽  
Theoretical Investigation ◽  
Intramolecular Proton Transfer

scholarly journals Excited state intramolecular proton transfer in hydroxyanthraquinones: Toward predicting fading of organic red colorants in art

2019 ◽  
Vol 5 (9) ◽  
pp. eaaw5227 ◽  
Author(s):  
J.A. Berenbeim ◽  
S. Boldissar ◽  
S. Owens ◽  
M.R. Haggmark ◽  
G. Gate ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Proton Transfer ◽  
Gas Phase ◽  
Intramolecular Proton Transfer ◽  
Structural Trend ◽  
Works Of Art ◽  
Proton Transfers ◽  
Proposed Model ◽  
High Level

Compositionally similar organic red colorants in the anthraquinone family, whose photodegradation can cause irreversible color and stability changes, have long been used in works of art. Different organic reds, and their multiple chromophores, suffer degradation disparately. Understanding the details of these molecules’ degradation therefore provides a window into their behavior in works of art and may assist the development of improved conservation methods. According to one proposed model of photodegradation dynamics, intramolecular proton transfer provides a kinetically favored decay pathway in some photoexcited chromophores, preventing degradation-promoting electron transfer (ET). To further test this model, we measured excited state lifetimes of substituted gas-phase anthraquinones using high-level theory to explain the experimental results. The data show a general structural trend: Anthraquinones with 1,4-OH substitution are long-lived and prone to damaging ET, while excited state intramolecular proton transfers promote efficient quenching for hydroxyanthraquinones that lack this motif.

scholarly journals An enhanced sampling QM/AMOEBA approach: The case of the excited state intramolecular proton transfer in solvated 3-hydroxyflavone

2021 ◽  
Vol 154 (18) ◽  
pp. 184107
Author(s):  
Michele Nottoli ◽  
Mattia Bondanza ◽  
Filippo Lipparini ◽  
Benedetta Mennucci
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Enhanced Sampling

scholarly journals The development of aryl-substituted 2-phenylimidazo[1,2-a]pyridines (PIP) with various colors of excited-state intramolecular proton transfer (ESIPT) luminescence in the solid state

2016 ◽  
Vol 4 (16) ◽  
pp. 3599-3606 ◽  
Author(s):  
Toshiki Mutai ◽  
Tatsuya Ohkawa ◽  
Hideaki Shono ◽  
Koji Araki
Keyword(s):  
Excited State ◽  
Solid State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aryl Group ◽  
Red Emission ◽  
Wide Range

The color of ESIPT luminescence of HPIP is tuned in a wide range by the introduction of aryl group(s), and thus a series of PIPs showing blue to red emission is realized.

Sign in / Sign up

Export Citation Format

Share Document