Photocyclization of aryl halides. Part 2. The upper excited state reactivity of 3-(2-halogenoanilino)-1,3-diphenylprop-2-enones; hydrogen-bonded configurational lock in photosynthesis

1981 ◽  
pp. 1010 ◽  
Author(s):  
James Grimshaw ◽  
A. Prasanna de Silva
Keyword(s):  
Excited State ◽  
Aryl Halides ◽  
Lock In ◽  
Hydrogen Bonded

Excited-State Intramolecular Proton Transfer in Polymers

1995 ◽  
Vol 413 ◽  
Author(s):  
Richard M. Tarkka ◽  
Samson A. Jenekhe
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Main Chain ◽  
Intramolecular Proton Transfer ◽  
Polymer Structure ◽  
Laser Dyes ◽  
Excimer Formation ◽  
Photochromic Materials ◽  
Hydrogen Bonded

ABSTRACTExcited state intramolecular proton transfer (ESIPT) has been demonstrated in new intramoleculary hydrogen bonded (IHB) polymers of interest as photostabilizers, triplet quenchers, photochromic materials, laser dyes and electroluminescent materials. The new IHB polymers containing the 2-(2-hydroxyphenyl)benzoxazole moiety in the main chain were used to explore the effects of polymer structure, extended conjugation and competition with excimer formation on the ESIPT process. It was found that polymer structure, and particularly extent of conjugation, affects an IHB polymer's ability to exhibit ESIPT.

A TDDFT study on the excited-state double proton transfer reaction of 8-hydroxyquinoline along a hydrogen-bonded bridge

2017 ◽  
Vol 41 (16) ◽  
pp. 8437-8442 ◽  
Author(s):  
Yu-Hui Liu ◽  
Shi-Ming Wang ◽  
Chaoyuan Zhu ◽  
Sheng Hsien Lin
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Double Proton Transfer ◽  
Hydrogen Bonded

The mechanism of excited-state multiple proton transfer reaction is demonstrated to be controlled by a hydrogen-bonded bridge.

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