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Time-resolved photoelectron studies of the relaxation of the S1(1E′') excited state of sym-triazine

✍ Scribed by Joan B. Pallix; Steven D. Colson

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
330 KB
Volume
119
Category
Article
ISSN
0009-2614

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✦ Synopsis

We presem photoelectron spectra of Ihe lowest singlet stale ('E") of sym-fintine obtained wth 2 ns and 5 ps cxcimalion sources Comparisons of pxosccond and nanosecond spectra are made at three wavelengths. corresponding LO the 6:. 6: and the 6:12i wbralional levels The spectra show lhat rapid ( ~5 ps) relaxalion to the lowest triplet slaw -rs subscquem IO single1 excikuion Couplmg of S, levels IO the T, manifold is xcry inhomogeneous with inuxsystem crossmg raws ranging from 10's_' 10 =-lo" s-'_ Furrhcrmore. for excilation al the 6:12', level we find evidence for relaxation LO another excited sia~e at rales 310" s-I_

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This study was funded by Spanish MEC under the programs CTQ2009-06968 and Consolider SAUUL CSD2007-00013. The experiments were carried out at the SGIker laser facility of the UPV/ EHU.