{"318791":{"#nid":"318791","#data":{"type":"event","title":"Buckybowls on Cu(111): Fivefold Symmetry and Self-Assembly","body":[{"value":"\u003Ch4\u003E\u003Cstrong\u003ESchool of Physics Condensed Matter Series: Dr. Quirin St\u00f6ckl, Swiss Federal Laboratories for Materials Science and Technology (EMPA)\u003C\/strong\u003E\u003Cbr \/\u003E\u003C\/h4\u003E\u003Cp\u003EFivefold symmetry is incompatible with the translational order in all 17 plane groups and is therefore of fundamental interest for two dimensional crystallization processes. A model study on single crystal surfaces, e.g. Cu(111), has been carried out to better understand the fundamental principles of intermolecular interactions between fivefold symmetric corannulene and its derivatives in two-dimensional clusters and lattices, including those consisting of fivefold bowl-shaped (buckybowl) molecules. Rational molecular design and state of the art surface science methods, e.g. Scanning Tunneling Microscopy, Low Energy Electron Diffraction, X-Ray Photoelectron Spectroscopy, Ultraviolet Photoelectron Spectroscopy, Temperature Programmed Desorption, and Reflection Adsorption Infrared Spectroscopy were applied. Several reversible surface phases were identified, including stripes, zig-zag, rosette and rotator phases. The packings of fivefold symmetric molecules was found to exhibit the same patterns upon adsorption as identified in the closest packings of hard pentagons and five-pointed stars.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Buckybowls on Cu(111): Fivefold Symmetry and Self-Assembly"}],"uid":"27664","created_gmt":"2014-08-25 10:52:45","changed_gmt":"2016-10-08 02:08:51","author":"Alison Morain","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2014-08-28T15:00:00-04:00","event_time_end":"2014-08-28T16:00:00-04:00","event_time_end_last":"2014-08-28T16:00:00-04:00","gmt_time_start":"2014-08-28 19:00:00","gmt_time_end":"2014-08-28 20:00:00","gmt_time_end_last":"2014-08-28 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"126011","name":"School of Physics"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:alison.morain@physics.gatech.edu\u0022\u003Ealison.morain@physics.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}