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"Photolysis of triiodide studied by femtosecond pump-probe spectroscopy with emission detection" P. Gilch, I. Hartl, Q. An, W. ZinthJ. Phys. Chem. A, 106 (2002) 1647-1653 Abstract: The photodissociation of triiodide into diiodide and iodine in ethanol solution was studied by a novel femtosecond pump-probe technique. The dispersed emission of the triiodide sample was recorded as a function of the delay between a 407 nm pump pulse and a 815 nm probe pulse. The most prominent feature of the resulting time dependent spectra is a strong anti-Stokes (with respect to the probe wavelength) contribution. This contribution rises with a delay of ~500 fs and decays on the 2 ps time scale. The decay of the anti-Stokes spectrum is discussed in terms of the cooling dynamics of nascent diiodide for which the technique presented here gives a more direct access than transient absorption spectroscopy. BMO authors (in alphabetic order): Peter Gilch Ingmar Hartl Qingrui Nielson Wolfgang Zinth Assoziierte Projekte: The flow of vibrational energy in molecules |
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Letzte Änderung: 2016-09-14 13:34
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