OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

LIFETIME BROADENING IN THE ROTATIONALLY RESOLVED ELECTRONIC SPECTRA OF SOME FURAN DERIVATIVES AND ANALOGS IN THE GAS PHASE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/31363

Show simple item record

Files Size Format View
abstract.gif 17.71Kb GIF image Thumbnail of LIFETIME BROADENING IN THE ROTATIONALLY RESOLVED ELECTRONIC SPECTRA OF SOME FURAN DERIVATIVES AND ANALOGS IN THE GAS PHASE

dc.creator Alvarez-Valtierra, Leonardo en_US
dc.creator Pratt, D. W. en_US
dc.creator Yi, John T. en_US
dc.date.accessioned 2008-01-12T13:50:21Z
dc.date.available 2008-01-12T13:50:21Z
dc.date.issued 2007 en_US
dc.identifier 2007-FD-05 en_US
dc.identifier.uri http://hdl.handle.net/1811/31363
dc.description Author Institution: Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260; Department of Chemistry, Winston Salem State University, Winston Salem, NC 27103 en_US
dc.description.abstract Fluorescence lifetimes of the electronic origin and some higher vibronic bands of dibenzofuran (DBF) }, (2006), 244302.} and dibenzothiophene (DBT) have been determined from the analyses of their rotationally resolved S$_1\leftarrow\,\,$S$_0$ fluorescence excitation spectra in the gas phase. A decrease by a factor of eight in the fluorescence lifetime has been observed for DBT with respect to DBF, where presumably the heavy atom effect plays a significant role in the intersystem crossing mechanism of these heterocycles. The high resolution spectra of the electronic origin transitions of two non-concatenated furan derivatives, 2,5-diphenylfuran (DPF) and 2,5-diphenyl-1,3,4-oxadioxole (DPO), exhibit similar lifetime broadening, about four times greater than that of DBF. Detailed information about radiationless transitions in the "statistical" limit will be discussed. en_US
dc.language.iso English en_US
dc.title LIFETIME BROADENING IN THE ROTATIONALLY RESOLVED ELECTRONIC SPECTRA OF SOME FURAN DERIVATIVES AND ANALOGS IN THE GAS PHASE en_US
dc.type article en_US