DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, S | ko |
dc.contributor.author | Sun, H | ko |
dc.contributor.author | Kim, Bongsoo | ko |
dc.contributor.author | Freed, KF | ko |
dc.date.accessioned | 2013-03-04T17:13:46Z | - |
dc.date.available | 2013-03-04T17:13:46Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-04 | - |
dc.identifier.citation | JOURNAL OF CHEMICAL PHYSICS, v.114, no.13, pp.5537 - 5544 | - |
dc.identifier.issn | 0021-9606 | - |
dc.identifier.uri | http://hdl.handle.net/10203/83397 | - |
dc.description.abstract | A theoretical analysis is presented for the photodissociation processes of SH to S(P-3) and S(D-1). Transition dipole moments from the ground X (2)Pi state to the A (2)Sigma (+), (2)Sigma (-), (2)Delta, 2 (2)Pi states are computed by the effective valence shell Hamiltonian method. Two frame transformation matrices are constructed and used to describe the correlations between the two sulfur atomic terms [S(P-3) and S(D-1)] and the adiabatic Born-Oppenheimer molecular states. Very interesting dynamics of quantum interference effects and asymptotic interactions are found. At energies between the thresholds to the S(P-3) and S(D-1) limits, the resonances are mostly Lorentzian with more or less constant S(P-3(j),j=0,1,2) branching ratios. The effects of the intrastate interactions between the repulsive states are predicted to be very strong. At energies above the threshold to S(D-1) limit, quantum interferences between the dissociative pathways through the optically bright repulsive states (A (2)Sigma (+), (2)Sigma (-), (2)Delta, and 2 (2)Pi states) are predicted to give asymmetric resonances of multichannel character. Partial cross sections to the triplet sulfur fine structure states S(P-3(j),j=0,1,2) exhibit different degrees of asymmetry and, consequently, the S(P-3(j),j=0,1,2) branching ratios display strong variations across the asymmetric resonances, suggesting the possibility of controlling the product distributions by scanning the excitation wavelengths across a single asymmetric resonance in a one-photon excitation process. At higher energies, the interference between the two direct dissociation routes (by A (2)Sigma (+) and (2)Sigma (-) states) is shown to produce highly oscillatory variations of the total cross section for dissociation to S(P-3) and of the branching ratios of S(P-3(j),j=0,1,2). (C) 2001 American Institute of Physics. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | ELECTRONIC ANGULAR-MOMENTUM | - |
dc.subject | OPEN-SHELL ATOMS | - |
dc.subject | ASYMMETRIC RESONANCES | - |
dc.subject | OH PHOTODISSOCIATION | - |
dc.subject | PREDISSOCIATION DYNAMICS | - |
dc.subject | DISSOCIATIVE STATES | - |
dc.subject | MECHANICAL ANALYSIS | - |
dc.subject | PERTURBATION-THEORY | - |
dc.subject | DIATOMIC-MOLECULES | - |
dc.subject | VECTOR PROPERTIES | - |
dc.title | Quantum interference and asymptotic interactions in the photodissociation of SH: Total cross section and branching ratios | - |
dc.type | Article | - |
dc.identifier.wosid | 000167578400012 | - |
dc.identifier.scopusid | 2-s2.0-0035308888 | - |
dc.type.rims | ART | - |
dc.citation.volume | 114 | - |
dc.citation.issue | 13 | - |
dc.citation.beginningpage | 5537 | - |
dc.citation.endingpage | 5544 | - |
dc.citation.publicationname | JOURNAL OF CHEMICAL PHYSICS | - |
dc.contributor.localauthor | Kim, Bongsoo | - |
dc.contributor.nonIdAuthor | Lee, S | - |
dc.contributor.nonIdAuthor | Sun, H | - |
dc.contributor.nonIdAuthor | Freed, KF | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTRONIC ANGULAR-MOMENTUM | - |
dc.subject.keywordPlus | OPEN-SHELL ATOMS | - |
dc.subject.keywordPlus | ASYMMETRIC RESONANCES | - |
dc.subject.keywordPlus | OH PHOTODISSOCIATION | - |
dc.subject.keywordPlus | PREDISSOCIATION DYNAMICS | - |
dc.subject.keywordPlus | DISSOCIATIVE STATES | - |
dc.subject.keywordPlus | MECHANICAL ANALYSIS | - |
dc.subject.keywordPlus | PERTURBATION-THEORY | - |
dc.subject.keywordPlus | DIATOMIC-MOLECULES | - |
dc.subject.keywordPlus | VECTOR PROPERTIES | - |
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