DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ihee, Hyot-Cherl | ko |
dc.contributor.author | Lorenc, M | ko |
dc.contributor.author | Kim, Tae Kyu | ko |
dc.contributor.author | Kong, QY | ko |
dc.contributor.author | Cammarata, M | ko |
dc.contributor.author | Lee, Jae-Hyuk | ko |
dc.contributor.author | Bratos, S | ko |
dc.contributor.author | Wulff, M | ko |
dc.date.accessioned | 2019-04-24T23:34:07Z | - |
dc.date.available | 2019-04-24T23:34:07Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2005-08 | - |
dc.identifier.citation | SCIENCE, v.309, no.5738, pp.1223 - 1227 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | http://hdl.handle.net/10203/261531 | - |
dc.description.abstract | We report direct structural evidence of the bridged radical (CH(2)ICH(2)center dot) in a polar solution, obtained using time-resolved liquid-phase x-ray diffraction. This transient intermediate has long been hypothesized to explain stereochemical control in many association and/or dissociation reactions involving haloalkanes. Ultrashort optical pulses were used to dissociate an iodine atom from the haloethane molecule (C2H4I2) dissolved in methanol, and the diffraction of picosecond x-ray pulses from a synchrotron supports the following structural dynamics, with similar to 0.01 angstrom spatial resolution and similar to 100 picosecond time resolution: The loss of one iodine atom from C2H4I2 leads to the C-I-C triangular geometry of CH(2)ICH(2)center dot. This transient C2H4I then binds to an iodine atom to form a new species, the C2H4I-I isomer, which eventually decays into C2H4+I-2. Solvent dynamics were also extracted from the data, revealing a change in the solvent cage geometry, heating, and thermal expansion. | - |
dc.language | English | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title | Ultrafast x-ray diffraction of transient molecular structures in solution | - |
dc.type | Article | - |
dc.identifier.wosid | 000231395400040 | - |
dc.identifier.scopusid | 2-s2.0-23844525079 | - |
dc.type.rims | ART | - |
dc.citation.volume | 309 | - |
dc.citation.issue | 5738 | - |
dc.citation.beginningpage | 1223 | - |
dc.citation.endingpage | 1227 | - |
dc.citation.publicationname | SCIENCE | - |
dc.identifier.doi | 10.1126/science.1114782 | - |
dc.contributor.localauthor | Ihee, Hyot-Cherl | - |
dc.contributor.localauthor | Kim, Tae Kyu | - |
dc.contributor.nonIdAuthor | Lorenc, M | - |
dc.contributor.nonIdAuthor | Kong, QY | - |
dc.contributor.nonIdAuthor | Cammarata, M | - |
dc.contributor.nonIdAuthor | Bratos, S | - |
dc.contributor.nonIdAuthor | Wulff, M | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | RADICALS | - |
dc.subject.keywordPlus | CRYSTALLOGRAPHY | - |
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