Ground and Excited State Double Hydrogen Transfer in Symmetric and Asymmetric Potentials: Comparison of 2,7,12,17‐Tetra‐ n ‐propylporphycene with 9‐Acetoxy‐2,7,12,17‐tetra‐ n ‐propylporphycene

2011 ◽  
Vol 17 (13) ◽  
pp. 3672-3678 ◽  
Author(s):  
Piotr Fita ◽  
Piotr Garbacz ◽  
Michał Nejbauer ◽  
Czesław Radzewicz ◽  
Jacek Waluk
Keyword(s):  
Excited State ◽  
Hydrogen Transfer ◽  
Double Hydrogen

scholarly journals Revealing the role of excited state proton transfer (ESPT) in excited state hydrogen transfer (ESHT): systematic study in phenol–(NH3)n clusters

2021 ◽  
Author(s):  
Christophe Jouvet ◽  
Mitsuhiko Miyazaki ◽  
Masaaki Fujii
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Systematic Study ◽  
General Model ◽  
Hydrogen Transfer ◽  
Excited State Proton Transfer

A general model of excited state hydrogen transfer (ESHT) which unifies ESHT and the excited state proton transfer (ESPT) is presented from experimental and theoretical works on phenol–(NH3)n. The hidden role of ESPT is revealed.

scholarly journals UV-induced hydrogen transfer in DNA base pairs promoted by dark nπ* states

2020 ◽  
Vol 56 (2) ◽  
pp. 201-204 ◽  
Author(s):  
Kinga E. Szkaradek ◽  
Petr Stadlbauer ◽  
Jiří Šponer ◽  
Robert W. Góra ◽  
Rafał Szabla
Keyword(s):  
Excited State ◽  
Hydrogen Transfer ◽  
Base Pairs ◽  
Dna Base ◽  
Dna Base Pairs

Formation of an excited-state complex enables ultrafast photorelaxation of dark nπ* states in GC and HC base pairs.

The long and winding road to new porphycenes

2012 ◽  
Vol 16 (05n06) ◽  
pp. 589-602 ◽  
Author(s):  
Igor Czerski ◽  
Arkadiusz Listkowski ◽  
Jan Nawrocki ◽  
Natalia Urbańska ◽  
Hubert Piwoński ◽  
...  
Keyword(s):  
Fluorescence Polarization ◽  
Hydrogen Transfer ◽  
Single Molecules ◽  
Tert Butyl ◽  
Tautomeric Forms ◽  
By Products ◽  
Double Hydrogen

We describe attempts — not always successful — made over the years to improve the efficiency of porphycene synthesis and to produce novel compounds, custom-designed for specific purposes. New porphycenes are reported, some of them obtained rather unexpectedly as by-products of the planned reactions. Structure and energy computations of possible tautomeric forms in porphycenes substituted by one, two, three, and four tert-butyl groups lead to predictions regarding the kinetics and mechanisms of intramolecular double hydrogen transfer. The occurrence of tautomerization in single molecules of tert-butylsubstituted porphycenes is demonstrated by using fluorescence polarization techniques.

Intracluster hydrogen transfer followed by dissociation in the phenol–(NH3)3 excited state: PhOH(S1)–(NH3)3→PhO•+(NH4)(NH3)2

1999 ◽  
Vol 111 (24) ◽  
pp. 10747-10749 ◽  
Author(s):  
G. A. Pino ◽  
C. Dedonder-Lardeux ◽  
G. Grégoire ◽  
C. Jouvet ◽  
S. Martrenchard ◽  
...  
Keyword(s):  
Excited State ◽  
Hydrogen Transfer

A non-adiabatic quantum-classical dynamics study of the intramolecular excited state hydrogen transfer in ortho-nitrobenzaldehyde

2011 ◽  
Vol 13 (32) ◽  
pp. 14685 ◽  
Author(s):  
Verónica Leyva ◽  
Inés Corral ◽  
Ferran Feixas ◽  
Annapaola Migani ◽  
Lluís Blancafort ◽  
...  
Keyword(s):  
Excited State ◽  
Hydrogen Transfer ◽  
Classical Dynamics

The Primary Steps in Excited-State Hydrogen Transfer: The Phototautomerization ofo-Nitrobenzyl Derivatives

2014 ◽  
Vol 20 (26) ◽  
pp. 8062-8067 ◽  
Author(s):  
Tomáš Šolomek ◽  
Christian G. Bochet ◽  
Thomas Bally
Keyword(s):  
Excited State ◽  
Hydrogen Transfer
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