{"id":270,"date":"2020-05-04T12:51:14","date_gmt":"2020-05-04T16:51:14","guid":{"rendered":"http:\/\/sites.nd.edu\/nazli-turan\/?p=270"},"modified":"2021-01-15T14:27:06","modified_gmt":"2021-01-15T18:27:06","slug":"excited-electrons-driving-a-reaction-have-been-observed-for-the-first-time","status":"publish","type":"post","link":"https:\/\/sites.nd.edu\/nazli-turan\/2020\/05\/04\/excited-electrons-driving-a-reaction-have-been-observed-for-the-first-time\/","title":{"rendered":"Excited electrons driving a reaction have been observed for the first time"},"content":{"rendered":"

“In past molecular movies, we have been able to see how atomic nuclei move during a chemical reaction,” said Peter Weber, a chemistry professor at Brown and senior author of the report. “But the chemical bonding itself, which is a result of the redistribution of electrons, was invisible. Now the door is open to watching the chemical bonds change during reactions.”<\/p><\/blockquote>\n

<\/p>\n

This spectacular article has been published in Nature Communications<\/a> recently. The electrons were excited with light adjusted by a laser. They stayed in the excited state about 200 femtoseconds and that was enough to capture the redistribution of electrons by researchers.<\/p>\n

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Scientists have directly seen the first step in a light-driven chemical reaction for the first time. They used an X-ray free-electron laser at SLAC to capture nearly instantaneous changes in the distribution of electrons when light hit a ring-shaped molecule called CHD. Within 30 femtoseconds, or millionths of a billionth of a second, clouds of electrons deformed into larger, more diffuse clouds corresponding to an excited electronic state. Credit: Thomas Splettstoesser\/SCIstyle, Terry Anderson\/SLAC National Accelerator Laboratory<\/figcaption><\/figure>\n

The more detailed explanations can be found here: First direct look at how light excites electrons to kick off a chemical reaction<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

“In past molecular movies, we have been able to see how atomic nuclei move during a chemical reaction,” said Peter Weber, a chemistry professor at Brown and senior author of the report. “But the chemical bonding itself, which is a result of the redistribution of electrons, was invisible. Now the door is open to watching […]<\/p>\n","protected":false},"author":3115,"featured_media":273,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[302453],"tags":[5070],"class_list":["post-270","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-news","tag-chemistry"],"_links":{"self":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/users\/3115"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/comments?post=270"}],"version-history":[{"count":3,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/270\/revisions"}],"predecessor-version":[{"id":413,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/posts\/270\/revisions\/413"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/media\/273"}],"wp:attachment":[{"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/media?parent=270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/categories?post=270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.nd.edu\/nazli-turan\/wp-json\/wp\/v2\/tags?post=270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}