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Schultz, Thomas
CRASY (Correlated Rotational Alignment Spectroscopy)
Research Interests
  • Correlated spectroscopy
  • Ultrafast spectroscopy
  • High-resolution spectroscopy
  • Photochemistry

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Observation of Proton Transfer in 2-Aminopyridine Dimer by Electron and Mass Spectroscopy

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Title
Observation of Proton Transfer in 2-Aminopyridine Dimer by Electron and Mass Spectroscopy
Author
Samoylova, ElenaRadloff, WolfgangRitze, Hans-HermannSchultz, Thomas
Issue Date
2009-07
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY A, v.113, no.29, pp.8195 - 8201
Abstract
A photoinitiated intermolecular electron-proton transfer reaction in 2-aminopyridine dimer was investigated by femtosecond pump-probe electron-ion coincidence spectroscopy and accompanying theory. Excited-state population dynamics were observed in real time by time-resolved mass spectroscopy, and the respective excited-state character of locally excited and proton/hydrogen transfer states was identified in coincident electron spectra. Two reaction channels for an ultrafast (sub-50 fis) and a slower (similar to 75 ps) proton/hydrogen transfer were observed and indicate that vibrational energy redistribution may lead to efficient population trapping in the excited state. Spectroscopic evidence of an unexpected hydrogen-transfer reaction in photoexcited aminopyridine monomer is also presented.
URI
https://scholarworks.unist.ac.kr/handle/201301/6243
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=67650845147
DOI
10.1021/jp903460b
ISSN
1089-5639
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CHM_Journal Papers
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