Source:http://linkedlifedata.com/resource/pubmed/id/19895017
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:19895017 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0205384 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0000966 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0456603 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0085406 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C1514468 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0205143 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0037775 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C0678540 | lld:lifeskim |
| pubmed-article:19895017 | lifeskim:mentions | umls-concept:C1705483 | lld:lifeskim |
| pubmed-article:19895017 | pubmed:issue | 17 | lld:pubmed |
| pubmed-article:19895017 | pubmed:dateCreated | 2009-11-9 | lld:pubmed |
| pubmed-article:19895017 | pubmed:abstractText | After the photolysis of acetaldehyde (CH(3)CHO) at 157.6 nm in a molecular-beam apparatus using photofragment translational spectroscopy and vacuum-ultraviolet photoionization to detect products, we observed 13 photofragments associated with six primary dissociation channels and secondary dissociation of products CH(3)CO and HCO. We measured time-of-flight spectra and spatial angular anisotropies of products and evaluated the branching ratios of products. All photoproducts have nearly isotropic angular distributions with an average /beta/ value less than 0.05. Primary dissociations to CH(3)CO+H and CH(3)+HCO are two major paths; most CH(3)CO subsequently decomposes spontaneously to CH(3)+CO and CH(2)CO+H and most HCO decomposes to H+CO. The ternary dissociation to CH(3)+CO+H thus accounts for approximately half of the total branching. Dissociations to CH(2)CO+H(2) and CH(2)+CH(2)O are observable, but the production of CH(4)+CO is ambiguous. The productions of C(2)H(3)+OH and C(2)H(2)+H(2)O indicate that isomerization from acetaldehyde to ethenol occurs before fragmentation. After photoexcitation to the n-3p state, most acetaldehyde converts into states T(1) and S(0) but a little isomerizes to ethenol followed by multichannel decomposition. | lld:pubmed |
| pubmed-article:19895017 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19895017 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19895017 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:19895017 | pubmed:month | Nov | lld:pubmed |
| pubmed-article:19895017 | pubmed:issn | 1089-7690 | lld:pubmed |
| pubmed-article:19895017 | pubmed:author | pubmed-author:LeeShih-Huang... | lld:pubmed |
| pubmed-article:19895017 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19895017 | pubmed:day | 7 | lld:pubmed |
| pubmed-article:19895017 | pubmed:volume | 131 | lld:pubmed |
| pubmed-article:19895017 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19895017 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19895017 | pubmed:pagination | 174312 | lld:pubmed |
| pubmed-article:19895017 | pubmed:year | 2009 | lld:pubmed |
| pubmed-article:19895017 | pubmed:articleTitle | Dynamics of multidissociation paths of acetaldehyde photoexcited at 157 nm: Branching ratios, distributions of kinetic energy, and angular anisotropies of products. | lld:pubmed |
| pubmed-article:19895017 | pubmed:affiliation | National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan. shlee@nsrrc.org.tw | lld:pubmed |
| pubmed-article:19895017 | pubmed:publicationType | Journal Article | lld:pubmed |