{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T23:45:45Z","timestamp":1789515945408,"version":"build-2803163510"},"reference-count":33,"publisher":"International Union of Crystallography (IUCr)","issue":"2","license":[{"start":{"date-parts":[[2010,2,9]],"date-time":"2010-02-09T00:00:00Z","timestamp":1265673600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2010,2,9]],"date-time":"2010-02-09T00:00:00Z","timestamp":1265673600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr A Found Crystallogr","Acta Cryst A","Acta Cryst Sect A","Acta Crystallogr A","Acta Crystallogr Sect A","Acta Crystallogr Sect A Found Crystallogr"],"published-print":{"date-parts":[[2010,3,1]]},"abstract":"<jats:p>A time-resolved X-ray solution scattering study of bromine molecules in CCl<jats:sub>4<\/jats:sub>is presented as an example of how to track atomic motions in a simple chemical reaction. The structures of the photoproducts are tracked during the recombination process, geminate and non-geminate, from 100\u2005ps to 10\u2005\u00b5s after dissociation. The relaxation of hot Br<jats:sub>2<\/jats:sub><jats:sup>*<\/jats:sup>molecules heats the solvent. At early times, from 0.1 to 10\u2005ns, an adiabatic temperature rise is observed, which leads to a pressure gradient that forces the sample to expand. The expansion starts after about 10\u2005ns with the laser beam sizes used here. When thermal artefacts are removed by suitable scaling of the transient solvent response, the excited-state solute structures can be obtained with high fidelity. The analysis shows that 30% of Br<jats:sub>2<\/jats:sub><jats:sup>*<\/jats:sup>molecules recombine directly along the<jats:italic>X<\/jats:italic>potential, 60% are trapped in the<jats:italic>A<\/jats:italic>\/<jats:italic>A<\/jats:italic>\u2032 state with a lifetime of 5.5\u2005ns, and 10% recombine non-geminately<jats:italic>via<\/jats:italic>diffusive motion in about 25\u2005ns. The Br\u2014Br distance distribution in the<jats:italic>A<\/jats:italic>\/<jats:italic>A<\/jats:italic>\u2032 state peaks at 3.0\u2005\u00c5.<\/jats:p>","DOI":"10.1107\/s0108767309054993","type":"journal-article","created":{"date-parts":[[2010,2,8]],"date-time":"2010-02-08T15:01:53Z","timestamp":1265641313000},"page":"252-260","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":29,"title":["Photolysis of Br<sub>2<\/sub>in CCl<sub>4<\/sub>studied by time-resolved X-ray scattering"],"prefix":"10.1107","volume":"66","author":[{"given":"Qingyu","family":"Kong","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jae Hyuk","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuela","family":"Lo Russo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tae Kyu","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maciej","family":"Lorenc","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Cammarata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Savo","family":"Bratos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Buslaps","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veijo","family":"Honkimaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyotcherl","family":"Ihee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Wulff","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2010,2,9]]},"reference":[{"key":"xd5028_bb1","doi-asserted-by":"crossref","first-page":"182","DOI":"10.1016\/0009-2614(85)80057-9","volume":"119","author":"Abul-Haj","year":"1985","journal-title":"Chem. 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