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Ultrafast carbene-carbene isomerization.
MedLine Citation:
PMID:  18366167     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The photochemistry of two isomeric aryl diazo ketones was investigated by fs time-resolved UV-vis and IR spectroscopies. Both diazo ketone excited states decompose in less than 300 fs by multiple pathways. One pathway involves concerted Wolff rearrangement and nitrogen extrusion, most likely in the syn rotomer. In the anti rotomer of one isomer, oxygen migration proceeds in concert with nitrogen extrusion to form rearranged keto carbene. This rotomer excited state also decomposes to form unrearranged carbene, which isomerizes in 5 ps.
Authors:
Jin Wang; Gotard Burdzinski; Jacek Kubicki; Terry L Gustafson; Matthew S Platz
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Publication Detail:
Type:  Journal Article     Date:  2008-03-26
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  130     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-04-18     Completed Date:  2008-07-11     Revised Date:  2008-12-15    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5418-9     Citation Subset:  -    
Affiliation:
Department of Chemistry, Ohio State University, Columbus, Ohio 43210, USA.
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