Real-Time Observation of Molecular Motion on a Surface
The laser-induced movement of CO molecules over a platinum surface was followed in real time by means of ultrafast vibrational spectroscopy. Because the CO molecules bound on different surface sites exhibit different C-O stretch vibrational frequencies, the site-to-site hopping, triggered by excitat...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2005-12, Vol.310 (5755), p.1790-1793 |
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| container_issue | 5755 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Backus, Ellen H. G Eichler, Andreas Kleyn, Aart W Bonn, Mischa |
| description | The laser-induced movement of CO molecules over a platinum surface was followed in real time by means of ultrafast vibrational spectroscopy. Because the CO molecules bound on different surface sites exhibit different C-O stretch vibrational frequencies, the site-to-site hopping, triggered by excitation with a laser pulse, can be determined from subpicosecond changes in the vibrational spectra. The unexpectedly fast motion--characterized by a 500-femtosecond time constant--reveals that a rotational motion of the CO molecules, rather than pure translation, is required for this diffusion process. This conclusion is corroborated by density functional theory calculations. |
| doi_str_mv | 10.1126/science.1120693 |
| format | Article |
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This conclusion is corroborated by density functional theory calculations.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1120693</identifier><identifier>PMID: 16282524</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Association for the Advancement of Science</publisher><subject>Analysis ; Carbon monoxide ; Condensed matter: structure, mechanical and thermal properties ; Exact sciences and technology ; Fluence ; Heat ; Infrared radiation ; Kinetics ; Lasers ; Line spectra ; Molecular dynamics ; Molecular rotation ; Molecules ; Observation ; Physics ; Pumps ; Rotation ; Solid surfaces and solid-solid interfaces ; Spectroscopy ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) ; Terraces ; Vibration</subject><ispartof>Science (American Association for the Advancement of Science), 2005-12, Vol.310 (5755), p.1790-1793</ispartof><rights>Copyright 2005 American Association for the Advancement of Science</rights><rights>2006 INIST-CNRS</rights><rights>COPYRIGHT 2005 American Association for the Advancement of Science</rights><rights>Copyright American Association for the Advancement of Science Dec 16, 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c734t-cd4fbd46fcb9b19956cab8617273e558eff2dd1e4006ae6ecf2bbe102982969c3</citedby><cites>FETCH-LOGICAL-c734t-cd4fbd46fcb9b19956cab8617273e558eff2dd1e4006ae6ecf2bbe102982969c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3843009$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/3843009$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,2871,2872,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17377085$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16282524$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Backus, Ellen H. 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This conclusion is corroborated by density functional theory calculations.</description><subject>Analysis</subject><subject>Carbon monoxide</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Exact sciences and technology</subject><subject>Fluence</subject><subject>Heat</subject><subject>Infrared radiation</subject><subject>Kinetics</subject><subject>Lasers</subject><subject>Line spectra</subject><subject>Molecular dynamics</subject><subject>Molecular rotation</subject><subject>Molecules</subject><subject>Observation</subject><subject>Physics</subject><subject>Pumps</subject><subject>Rotation</subject><subject>Solid surfaces and solid-solid interfaces</subject><subject>Spectroscopy</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><subject>Terraces</subject><subject>Vibration</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqN089v0zAUB_AIgVgZnLkgiEAgccjmH4ljH7cKyqRCJbpxtRznOUrlxpudIPbf4yoRU1EFVQ5J_D7vWUm-SZKXGJ1hTNh50C10GnY3iAn6KJlhJIpMEEQfJzOEKMs4KouT5FkIG4RiTdCnyQlmhJOC5LOEfQdls-t2C-mqCuB_qr51XepM-tVZ0INVPl6Na12q0vXgjdLwPHlilA3wYjqfJjefP13Pv2TL1eJqfrHMdEnzPtN1bqo6Z0ZXosJCFEyrijNckpJCUXAwhtQ1hhwhpoCBNqSqACMiOBFMaHqafBjn3np3N0Do5bYNGqxVHbghSMYFIhjl_4WEI07iNhG-_Qtu3OC7-BCSYFqIAhMa0bsRNcqCbDvjeq_0bqK8wDkSglG62zM7oBrowCvrOjBtXN7zZwd8PGrYtvpgw8e9hmh6-NU3aghBXq2_HW9XP463l4ujLV8s__VCJqudtdCAjMmYr_b9-ei1dyF4MPLWt1vl7yVGcpdvOeVbTvmOHa-nrzdUW6gf_BToCN5PQAWtrPGq0214cCUtS8SL6F6NbhN65__UKc9p_Eti-c1YNspJ1fg44mZNEKYohq3IKaW_AXnUDY8</recordid><startdate>20051216</startdate><enddate>20051216</enddate><creator>Backus, Ellen H. 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The unexpectedly fast motion--characterized by a 500-femtosecond time constant--reveals that a rotational motion of the CO molecules, rather than pure translation, is required for this diffusion process. This conclusion is corroborated by density functional theory calculations.</abstract><cop>Washington, DC</cop><pub>American Association for the Advancement of Science</pub><pmid>16282524</pmid><doi>10.1126/science.1120693</doi><tpages>4</tpages></addata></record> |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Analysis Carbon monoxide Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fluence Heat Infrared radiation Kinetics Lasers Line spectra Molecular dynamics Molecular rotation Molecules Observation Physics Pumps Rotation Solid surfaces and solid-solid interfaces Spectroscopy Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Terraces Vibration |
| title | Real-Time Observation of Molecular Motion on a Surface |
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