Isotope effects in the photofragmentation of symmetric molecules: The branching ratio of OD/OH in water

Research output: Research - peer-reviewJournal article – Annual report year: 2005

View graph of relations

With HOD initially in its vibrational ground state, we present a new detailed interpretation of the OD/OH branching ratio (similar to 3) in the photoinduced process D+OH H+OD, in the first absorption band. Using semiclassical arguments, we show that the branching ratio has little to do with the initial distribution of configurations, but the initial momentum distribution plays a key role in determination of the branching ratio. The formation of D+OH arises from initial situations where OD is stretching, and it stretches faster than OH, whereas all other motions lead to H+OD. This picture is confirmed by quantum wave-packet calculations. (c) 2005 American Institute of Physics.
Original languageEnglish
JournalJournal of Chemical Physics
Volume122
Issue number20
Pages (from-to)204320
ISSN0021-9606
DOIs
StatePublished - 2005

Bibliographical note

Copyright (2005) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

CitationsWeb of Science® Times Cited: 13
Download as:
Download as PDF
Select render style:
APAAuthorCBE/CSEHarvardMLAStandardVancouverShortLong
PDF
Download as HTML
Select render style:
APAAuthorCBE/CSEHarvardMLAStandardVancouverShortLong
HTML
Download as Word
Select render style:
APAAuthorCBE/CSEHarvardMLAStandardVancouverShortLong
Word

Download statistics

No data available

ID: 4755627