ZERO-KINETIC-ENERGY PHOTOELECTRON SPECTROSCOPY AND EXCITED-STATE INTRAMOLECULAR PROTON TRANSFER IN A 'DOUBLE' BENZOXAZOLE

作者: A Mühlpfordt , U Even , NP Ernsting , None

DOI: 10.1016/S0009-2614(96)01184-0

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摘要: Abstract Resonant two-color photoionization spectroscopy has been used for the first time to study a compound which exhibits an enol → keto reaction after electronic excitation. Detecting only photoelectrons with zero kinetic energy (ZEKE), we observe two thresholds ionization from selected vibronic levels of jet-cooled molecule. The are assigned excited and forms. implications ultrafast time-resolved discussed.

参考文章(31)
J. L. Herek, S. Pedersen, L. Bañares, A. H. Zewail, Femtosecond real‐time probing of reactions. IX. Hydrogen‐atom transfer Journal of Chemical Physics. ,vol. 97, pp. 9046- 9061 ,(1992) , 10.1063/1.463331
Th. Arthen-Engeland, T. Bultmann, N.P. Ernsting, M.A. Rodriguez, W. Thiel, Singlet excited-state intramolecular proton tranfer in 2-(2t'-hydroxyphenyl) benzoxazole: Spectroscopy at low temperatures, femtosecond transient absorption, and MNDO calculations. principles and practice of constraint programming. ,vol. 163, pp. 43- 53 ,(1992) , 10.1016/0301-0104(92)80138-L
Anna Grabowska, Andrzej Mordzinski, Naoto Tamai, Keitaro Yoshihara, Reversible intramolecular proton-transfer reactions of electronically excited “double” benzoxazoles: A direct observation of the effect of the intrinsic barrier Chemical Physics Letters. ,vol. 169, pp. 450- 456 ,(1990) , 10.1016/0009-2614(90)87076-4
Klaus Müller-Dethlefs, Michael Sander, Edward W. Schlag, A Novel Method Capable of Resolving Rotational Ionic States by the Detection of Threshold Photoelectrons with a Resolution of 1.2 cm -1 Zeitschrift für Naturforschung A. ,vol. 39, pp. 1089- 1091 ,(1984) , 10.1515/ZNA-1984-1112
Frederick A. Ensminger, Jason Plassard, Timothy S. Zwier, Steven Hardinger, Mode-selective photoisomerization in 5-hydroxytropolone. I. Experiment Journal of Chemical Physics. ,vol. 102, pp. 5246- 5259 ,(1995) , 10.1063/1.469250
Andrzej Mordzinski, Wolfgang Kuehnle, Kinetics of excited-state proton transfer in double benzoxazoles: 2,5-bis(2-benzoxazolyl)-4-methoxyphenol The Journal of Physical Chemistry. ,vol. 90, pp. 1455- 1458 ,(1986) , 10.1021/J100398A047
Sebastião J. Formosinho, Luís G. Arnaut, Excited-state proton transfer reactions II. Intramolecular reactions Journal of Photochemistry and Photobiology A: Chemistry. ,vol. 75, pp. 21- 48 ,(1993) , 10.1016/1010-6030(93)80158-6