Multiphoton photoelectron spectroscopy: watching molecules dissociate
文献信息
Bernhard Urban, Vladimir E. Bondybey
Threshold photoionization spectroscopy [zero kinetic energy (ZEKE), pulsed field ionization (PFI), mass analysed threshold ionisation (MATI)] usually takes advantage of multip hoton excitation through bound intermediate states, but we show that excellent quality, high-resolution spectra can also be obtained in one-color experiments using two- and three-photon ionization. An enhancement similar to resonance Raman yields changed spectra if the excitation proceeds ia continuous intermediate states. A molecule which after absorbing a photon started to dissociate is stabilized on the ionic surface by a delayed second photon, with the observed spectra reflecting geometry changes due to this arrested dissociation process. Using two colors, the technique should be applicable to almost any molecule, and yield a detailed insight into its dissociation dynamics.
期刊推荐

Chinese Journal of Chemistry

Critical Reviews in Solid State and Materials Sciences

Herald of the Russian Academy of Sciences

Journal of Asian Natural Products Research

Main Group Chemistry

Journal of Chemical Sciences

Medicinal Chemistry Research

NDT & E International

Colloid Journal

Polycyclic Aromatic Compounds
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