{"title":"Question of mode-specificity in unimolecular reaction dynamics","authors":"W. Miller","doi":"10.1155/LC.2.243","DOIUrl":null,"url":null,"abstract":"Unimolecular decomposition following state-specific laser excitation is considered. If \nthe transition state for the unimolecular reaction possesses any geometrical symmetry, \nthen it is shown that this can lead to mode-specificity in the decay rates (i.e., different \nstates with essentially the same total energy and angular momentum react at significantly \ndifferent rates). This is illustrated for a model problem of two coupled oscillators (the \nHenon–Heiles potential) and also for the unimolecular dissociation of formaldehyde, \nH2CO→H2","PeriodicalId":296295,"journal":{"name":"Laser Chemistry","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laser Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/LC.2.243","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Unimolecular decomposition following state-specific laser excitation is considered. If
the transition state for the unimolecular reaction possesses any geometrical symmetry,
then it is shown that this can lead to mode-specificity in the decay rates (i.e., different
states with essentially the same total energy and angular momentum react at significantly
different rates). This is illustrated for a model problem of two coupled oscillators (the
Henon–Heiles potential) and also for the unimolecular dissociation of formaldehyde,
H2CO→H2
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