Direct observation of the photodecomposition of liquid nitromethane under UV photolysis by sub-picosecond time-resolved CARS experiments
| hal.structure.identifier | Centre de physique moléculaire optique et hertzienne [CPMOH] | |
| dc.contributor.author | RAJCHENBACH, C. | |
| hal.structure.identifier | Centre de physique moléculaire optique et hertzienne [CPMOH] | |
| dc.contributor.author | JONUSAUSKAS, Gediminas | |
| hal.structure.identifier | Centre de physique moléculaire optique et hertzienne [CPMOH] | |
| dc.contributor.author | RULLIERE, C. | |
| dc.date.issued | 1994-12-30 | |
| dc.identifier.issn | 0009-2614 | |
| dc.description.abstractEn | Using a sub-picosecond CARS experiment we observed the direct photolysis of liquid nitromethane after pulse excitation at 299 nm. We measured the dynamical behaviour under excitation of three main ground-state Raman lines: the v(CN) mode at 917 cm−1, the vs (NO2) and δs (CH3) modes near 1400 cm−1 and the Vs(CH3) mode at 2968 cm−1. From the evolution of these modes we deduced that the excited state disappears with a lifetime of 1.1 ± 0.3 ps and we measured a photolysis quantum yield at 299 nm of 24% ± 5%. A non-radiative de-excitation channel from the excited to the ground state has been observed and its possible role in the explosive process is discussed. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.title.en | Direct observation of the photodecomposition of liquid nitromethane under UV photolysis by sub-picosecond time-resolved CARS experiments | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/0009-2614(94)01275-X | |
| dc.subject.hal | Physique [physics] | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Optique [physics.optics] | |
| bordeaux.journal | Chemical Physics Letters | |
| bordeaux.page | 467-475 | |
| bordeaux.volume | 231 | |
| bordeaux.issue | 4-6 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01549868 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01549868v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemical%20Physics%20Letters&rft.date=1994-12-30&rft.volume=231&rft.issue=4-6&rft.spage=467-475&rft.epage=467-475&rft.eissn=0009-2614&rft.issn=0009-2614&rft.au=RAJCHENBACH,%20C.&JONUSAUSKAS,%20Gediminas&RULLIERE,%20C.&rft.genre=article |
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