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Picosecond MPI mass spectrometry of CH_3I in the process of dissociation

Khundkar, Luftur R. and Zewail, Ahmed H. (1987) Picosecond MPI mass spectrometry of CH_3I in the process of dissociation. Chemical Physics Letters, 142 (5). pp. 426-432. ISSN 0009-2614. https://resolver.caltech.edu/CaltechAUTHORS:20160906-090610524

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Abstract

Picosecond multiphoton ionization and time-of-flight mass spectrometry has been used to monitor the dissociation of methyl iodide excited to its A continuum. The measured signals show a rapid buildup when the probe laser is tuned to a resonance of free atomic iodine and a sharp feature at zero time delay when it is tuned off-resonance. Enhanced signal is also observed in the parent ion channel. These results illustrate the possible use of this technique for the probing of fragment species before they are completely separated from their partners in a half-collision process.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0009-2614(87)85137-0DOIArticle
http://www.sciencedirect.com/science/article/pii/0009261487851370PublisherArticle
Additional Information:© 1987 lsevier Science Publishers B.V. Received 5 November 1987. This work was supported by the Air Force Office of Scientific Research, Contract No. AFOSR-87-0071. We thank Professor J.C. Polanyi for providingus with a preprint of his work on HD_2. One of us (AHZ) wishes to acknowledge fruitful and enlightening discussions with Professor R. Bersohn on absorption during dissociation while here at Caltech.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)87-0071
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Arthur Amos Noyes Laboratory of Chemical Physics7695
Issue or Number:5
Record Number:CaltechAUTHORS:20160906-090610524
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160906-090610524
Official Citation:Luftur R. Khundkar, Ahmed H. Zewail, Picosecond MPI mass spectrometry of CH3I in the process of dissociation, Chemical Physics Letters, Volume 142, Issue 5, 18 December 1987, Pages 426-432, ISSN 0009-2614, http://dx.doi.org/10.1016/0009-2614(87)85137-0. (http://www.sciencedirect.com/science/article/pii/0009261487851370)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70163
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:07 Sep 2016 17:09
Last Modified:03 Oct 2019 10:28

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