Literature DB >> 16839046

Excited-state double-proton transfer in the 7-azaindole dimer in the gas phase. 3. Reaction mechanism studied by picosecond time-resolved REMPI spectroscopy.

Kenji Sakota, Chie Okabe, Nobuyuki Nishi, Hiroshi Sekiya.   

Abstract

The excited-state double-proton-transfer (ESDPT) reaction in the jet-cooled 7-azaindole dimer (7AI2) has been investigated with picosecond time-resolved resonance-enhanced multiphoton ionization spectroscopy. The observed decay profiles of 7AI2 by exciting the origin and the intermolecular stretch fundamental in the S1 state are well reproduced by single-exponential functions with time constants of 1.9 +/- 0.9 ps and 860 +/- 300 fs, respectively. This result provides clear evidence of the concerted mechanism of ESDPT in 7AI2.

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Year:  2005        PMID： 16839046     DOI： 10.1021/jp0520805

Source DB:  PubMed          Journal:  J Phys Chem A        ISSN： 1089-5639            Impact factor:   2.781


  3 in total

1.  The answer to concerted versus step-wise controversy for the double proton transfer mechanism of 7-azaindole dimer in solution.

Authors:  Satoshi Takeuchi; Tahei Tahara
Journal:  Proc Natl Acad Sci U S A       Date:  2007-03-20       Impact factor: 11.205

2.  Computational study of the intramolecular proton transfer reactions of 3-hydroxytropolone (2,7-dihydroxycyclohepta-2,4,6-trien-1-one) and its dimers.

Authors:  Dilara Ozbakir Isin; Nihat Karakus
Journal:  J Mol Model       Date:  2010-03-16       Impact factor: 1.810

3.  Stepwise double excited-state proton transfer is not possible in 7-azaindole dimer.

Authors:  Rachel Crespo-Otero; Nawee Kungwan; Mario Barbatti
Journal:  Chem Sci       Date:  2015-07-08       Impact factor: 9.825
  3 in total

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