Pump-probe photodepletion spectroscopy of (C6H6)2+. Identification of spectrum in the charge resonance band region
Pump-probe photodepletion (hole-burning) experiments are performed on mass-selected cluster ions in the gas phase. An electronic spectrum of (C6H6)2+ in near-infrared region comprises two charge resonance bands at 920 and 1160 nm. Intensities of these two bands monitored by the probe laser are shown to be reduced by the same amount with the introduction of the pump laser. The behavior proves that the CR bands are due to two distinct transitions of a single isomer. No evidence is found for the existence of other isomers of (C6H6)2+.
This work was supported in part by Grant-in-Aid for research programs (07740465 and 07454190) from the Ministry of Education, Science, Sports and Culture of Japan. K. O. received financial support from the Morino Science Foundation.
This is a postprint of an article published by Elsevier B.V. in Chemical Physics Letters, 1996, available online: http://doi.org/10.1016/S0009-2614(96)01209-2
Chemical Physics Letters
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Copyright (c) 1996 Elsevier Science B.V. All rights reserved
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