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Natalia V. Lebedeva ; Matthew S. Platz ; Malcolm D. E. Forbes ;Journal of the Mexican Chemical Society 2009, 53 (3)

Autor: Jin Wang

Fuente: http://www.redalyc.org/


Introducción



Journal of the Mexican Chemical Society ISSN: 1870-249X editor.jmcs@gmail.com Sociedad Química de México México Wang, Jin; Lebedeva, Natalia V.; Platz, Matthew S.; Forbes, Malcolm D.
E. Carbene Spin Multiplicity in Solution Probed Using Time-Resolved EPR Spectroscopy Journal of the Mexican Chemical Society, vol.
53, núm.
3, julio-septiembre, 2009, pp.
163-168 Sociedad Química de México Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=47512154014 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative J.
Mex.
Chem.
Soc.
2009, 53(3), 163-168 © 2009, Sociedad Química de México ISSN 1870-249X Article Carbene Spin Multiplicity in Solution Probed Using Time-Resolved EPR Spectroscopy Jin Wang,1 Natalia V.
Lebedeva,2 Matthew S.
Platz,1 and Malcolm D.
E.
Forbes2,* 1 2 Department of Chemistry, The Ohio State University, 100 W.
18th Avenue, Columbus, OH 43210 Department of Chemistry, Caudill Laboratories, The University of North Carolina, Chapel Hill, NC 27599, *mdef@unc.edu Dedicated to the memory of Ernest L.
Eliel, a scholar and a gentleman in the truest sense Received July 24, 2009; accepted September 21, 2009 Abstract.
Time-resolved (CW) EPR spectroscopy at X-band has been used to detect free radicals created by H-atom abstraction reactions of photochemically generated carbenes in n-hexadecane solutions at room temperature.
Three different carbenes were studied, formed via loss of nitrogen after photo-excitation of a substituted biphenyl diazo precursor.
The TREPR signals from two different alkyl radicals and the benzylic-type radical from the carbene are detected for two of the three diazo substrates.
The radicals were unambiguously identified by spectral simulation using literature parameters (g-fac...





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