Crystal and Molecular Structures of New Chromone Derivatives as Empirical Evidence of Intramolecular Proton Transfer Reaction; Ab Initio Studies on Intramolecular H-Bonds in Enaminones

2002 ◽  
Vol 106 (49) ◽  
pp. 11956-11962 ◽  
Author(s):  
Agnieszka J. Rybarczyk-Pirek ◽  
Sławomir J. Grabowski ◽  
Magdalena Małecka ◽  
Jolanta Nawrot-Modranka
Keyword(s):  
Proton Transfer ◽  
Ab Initio ◽  
Empirical Evidence ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Intramolecular Proton Transfer ◽  
Molecular Structures ◽  
Chromone Derivatives ◽  
Crystal And Molecular Structures

Effects of different substituents of methyl 5-R-salicylates on the excited state intramolecular proton transfer process

2018 ◽  
Vol 20 (6) ◽  
pp. 4208-4215 ◽  
Author(s):  
Yongqing Li ◽  
Yanzhen Ma ◽  
Yunfan Yang ◽  
Wei Shi ◽  
Ruifang Lan ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Transfer Process ◽  
Transfer Reaction ◽  
Proton Transfer Reaction ◽  
Intramolecular Proton Transfer ◽  
Hydroxyl Group ◽  
Highly Sensitive ◽  
Proton Transfer Process

The proton transfer reaction in methyl 5-R-salicylate is found to be highly sensitive to the presence of specific substituents in resonance with the hydroxyl group, leading to different fluorescence behaviors of methyl 5-R-salicylate with different substituents.

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