{"93511":{"#nid":"93511","#data":{"type":"event","title":"(08-0422) Peter B. Sherry Annual Lecture","body":[{"value":"\u003Cp\u003EThe annual Peter B. Sherry Lecture - Prof. J. Fraser Stoddart, Northwestern University\n\u003C\/p\u003E\n\u003Cp\u003EMingling Art with Science\n\u003C\/p\u003E\n\u003Cp\u003E- It was Marcellin Berthelot (1827-1907) who, in 1860, stated, \u0022Chemistry creates its object.\u0022 He continued, \u0022This creative capability, resembling that of art itself, distinguishes it essentially from the natural and historical sciences.\u0022  As one of Berthelot\u0027s most fervent disciples these past 35 years, I have been a sculptor of matter at the ultimate of size levels that equates with being a chemist - namely, the molecular level.  I have faced formidable challenges, yet derived no end of pleasure from designing and synthesizing molecular compounds of a somewhat bizarre kind.  These exotic compounds contain, in addition to the classical chemical bonds, a mechanical bond. My presentation will draw attention to how art in its many different guises has fashioned my chemistry in its numerous diverse shapes and forms over the years.\n\u003C\/p\u003E\n\u003Cp\u003EAn example is the realization of the Borromean Link in a wholly synthetic molecular form. The self-assembly of this link, which is topologically achiral, from 18 components by the template-directed formation of 12 imine and 30 dative bonds, associated with the coordination of three interlocked macrocycles, each tetranucleating and decadentate overall, to a total of six zinc(II) ions, is near quantitative. Three macrocycles present diagonally in pairs, six exo-bidentate bipyridyl and six endo-diiminopyridyl ligands to the six zinc(II) ions. The use, in concert, of coordination, supramolecular, and dynamic covalent chemistry leads to the highly efficient construction, by multiple cooperative self-assembly processes, of a nanoscale dodecacation with an approximate diameter of 2.5 nanometers and an inner chamber of volume 250 cubic \u00c5ngstroms, lined with 12 oxygen atoms. Taking advantage of the ability to preorganize six metal ions spatially and symmetrically, other metals with interesting redox properties were used to construct more so-called Borromeates. Additionally, conditions were used in which metals were mixed and led, quite unexpectedly, to the formation of another topological entity, known as King Solomon\u0027s Link.\n\u003C\/p\u003E\n\u003Cp\u003EJust as an interest in art history and topology took me into the molecular world of the Borromean Link so did the chance discovery of the molecular Solomon Link, amongst some Borromeates, take me back into the arena of art history. And so the process goes on and on. One culture feeds off the other in a seamless manner.\n\u003C\/p\u003E\n\u003Cp\u003EFor more information contact \u003Ca href=\u0022mailto:rshaner3@gatech.edu\u0022\u003ERebecca Shaner\u003C\/a\u003E.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"The annual Peter B. Sherry Lecture - Prof. J. Fraser Stoddart, Northwestern University\n\nMingling Art with Science","format":"limited_html"}],"field_summary_sentence":[{"value":"Sherry Lecture - Prof. J. Fraser Stoddart"}],"uid":"27275","created_gmt":"2008-01-18 01:00:00","changed_gmt":"2016-10-08 01:57:24","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2008-04-22T16:00:00-04:00","event_time_end":"2008-04-22T17:00:00-04:00","event_time_end_last":"2008-04-22T17:00:00-04:00","gmt_time_start":"2008-04-22 20:00:00","gmt_time_end":"2008-04-22 21:00:00","gmt_time_end_last":"2008-04-22 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/www.chem.northwestern.edu\/faculty\/details?assetID=1904","title":"Prof. J. Fraser Stoddart, Northwestern University"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"2289","name":"organic"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cstrong\u003EShirley Tomes\u003C\/strong\u003E\u003Cbr \/\u003EChemistry \u0026amp; Biochemistry\u003Cbr \/\u003E\u003Ca href=\u0022http:\/\/www.gatech.edu\/contact\/index.html?id=st81\u0022\u003EContact Shirley Tomes\u003C\/a\u003E\u003Cbr \/\u003E\u003Cstrong\u003E404-894-0591\u003C\/strong\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}