Steady-state and time-resolved direct detection EPR spectra of fullerene triplets in liquid solution and glassy matrixes: evidence for a dynamic Jahn-Teller effect in …
GL Closs, P Gautam, D Zhang, PJ Krusic… - The Journal of …, 1992 - ACS Publications
GL Closs, P Gautam, D Zhang, PJ Krusic, SA Hill, E Wasserman
The Journal of Physical Chemistry, 1992•ACS PublicationsUV irradiation of methylcyclohexane solutions of produces a very narrow, transient EPR
absorption which is assigned to the first excited triplet state of C^. The line widthof only 0.14
G, uncommon for motionally narrowed triplet EPR spectra, is attributed to a very rapid
interchange of the magnetic axes by pseudorotation converting the degenerate Jahn-Teller
states into each other. Time-resolved, direct-absorption EPR measurements with a time
resolution of 0.5 gs support this conclusion.
absorption which is assigned to the first excited triplet state of C^. The line widthof only 0.14
G, uncommon for motionally narrowed triplet EPR spectra, is attributed to a very rapid
interchange of the magnetic axes by pseudorotation converting the degenerate Jahn-Teller
states into each other. Time-resolved, direct-absorption EPR measurements with a time
resolution of 0.5 gs support this conclusion.
UV irradiation of methylcyclohexane solutions of produces a very narrow, transient EPR absorption which is assigned to the first excited triplet state of C^. The line widthof only 0.14 G, uncommon for motionally narrowed triplet EPR spectra, is attributed to a very rapid interchange of the magnetic axes by pseudorotation converting the degenerate Jahn-Teller states into each other. Time-resolved, direct-absorption EPR measurements with a time resolution of 0.5 gs support this conclusion.
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