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Impressum
(c) 2002 BMO

"Photolysis of triiodide studied by femtosecond pump-probe spectroscopy with emission detection"
P. Gilch, I. Hartl, Q. An, W. Zinth
J. 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