完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Chiang, SY | en_US |
dc.contributor.author | Fang, YS | en_US |
dc.contributor.author | Bahou, M | en_US |
dc.contributor.author | Sankaran, K | en_US |
dc.date.accessioned | 2014-12-08T15:38:46Z | - |
dc.date.available | 2014-12-08T15:38:46Z | - |
dc.date.issued | 2004-08-01 | en_US |
dc.identifier.issn | 0009-4536 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/26539 | - |
dc.description.abstract | The dissociative photoionization of molecular-beam cooled CH2CO in a region of similar to10-20 eV was investigated with photoionization mass spectrometry using a synchrotron radiation as the light source. Photoionization efficiency curves of CH2CO+ and of observed fragment ions CH2+, CHCO+, HCO+ C2O+ CO+, and C2H2+ were measured to determine their appearance energies. Relative branching ratios as a function of photon energy were determined. Energies for formation of these observed fragment ions and their neutral counterparts upon ionization of CH2CO are computed with the Gaussian-3 method. Dissociative photoionization channels associated with six observed fragment ions are proposed based on comparison of determined appearance energies and predicted energies. The principal dissociative processes are direct breaking of C=C and C-H bonds to form CH2+ + CO and CHCO+ + H, respectively; at greater energies, dissociation involving H migration takes place. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | dissociative photoionization | en_US |
dc.subject | CH2CO | en_US |
dc.subject | Galussian-3 method | en_US |
dc.title | Experiments and calculations on photoionization and dissociative photoionization of CH2CO | en_US |
dc.type | Article | en_US |
dc.identifier.journal | JOURNAL OF THE CHINESE CHEMICAL SOCIETY | en_US |
dc.citation.volume | 51 | en_US |
dc.citation.issue | 4 | en_US |
dc.citation.spage | 681 | en_US |
dc.citation.epage | 688 | 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:000223437800002 | - |
dc.citation.woscount | 1 | - |
顯示於類別: | 期刊論文 |