完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lai, Hsin Ying | en_US |
dc.contributor.author | Jhang, Wan Ru | en_US |
dc.contributor.author | Tseng, Chien-Ming | en_US |
dc.date.accessioned | 2019-04-02T05:59:38Z | - |
dc.date.available | 2019-04-02T05:59:38Z | - |
dc.date.issued | 2018-07-21 | en_US |
dc.identifier.issn | 0021-9606 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1063/1.5041992 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/147892 | - |
dc.description.abstract | Phenol can serve as a model for examining the deactivation of the aromatic amino acid tyrosine following UV excitation, which mainly occurs through a repulsive pi sigma* state along the O-H bond. The reaction barrier formed by the conical intersection between the optically bright S-1 (pi pi*) state and the dissociative S-2 (pi sigma*) state does not inhibit O-H bond rupture even though the excitation energy is below the barrier height. To examine the O-H bond-rupture dynamics in association with the initial excited vibrational modes, we used a picosecond laser to investigate the vibrational-mode-dependent excited-state lifetime of phenol under the S-1/S-2 conical intersection. Unexpectedly short lifetimes were observed in the S-1 state for a '' symmetric vibrational modes (including nu(4), nu(16a), tau OH, and nu(5)). These results clarify recent theoretical calculations showing that the relaxation from S-1 to S-2 either occurs via symmetry-allowed non-adiabatic transitions or is topographically linked to a lower energy minimum on the multidimensional potential energy surface. Published by AIP Publishing. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Communication: Mode-dependent excited-state lifetime of phenol under the S-1/S(2 )conical intersection | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1063/1.5041992 | en_US |
dc.identifier.journal | JOURNAL OF CHEMICAL PHYSICS | en_US |
dc.citation.volume | 149 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000439428400005 | en_US |
dc.citation.woscount | 1 | en_US |
顯示於類別: | 期刊論文 |