Photoionization and photofragmentation of theC60+molecular ion

Photofragmentation of Isoleucine by Vacuum Ultraviolet Photoionization

Vacuum ultraviolet photon-induced ionization and dissociation of isoleucine are investigated with synchrotron radiation photoionization mass spectroscopy and theoretical calculations. The main fragment ions at m/z=86, 75, 74, 69, 57, 46, 45, 44, 41, 30, 28, and 18 from isoleucine are observed in the mass spectrum at the photon energy of 13 eV. From the photoionization efficiency curves, appeara...

Photoionization and photofragmentation of SF6 in helium nanodroplets.

The photoionization of He droplets doped with SF6 was investigated using tunable vacuum ultraviolet (VUV) synchrotron radiation from the Advanced Light Source (ALS). The resulting ionization and photofragmentation dynamics were characterized using time-of-flight mass spectrometry combined with photofragment and photoelectron imaging. Results are compared to those of gas-phase SF6 molecules. We ...

Vacuum ultraviolet photofragmentation of octadecane: photoionization mass spectrometric and theoretical investigation

The photoionization and fragmentation of octadecane were investigated with infrared laser desorption/tunable synchrotron vacuum ultraviolet (VUV) photoionization mass spectrometry (IRLD/VUV PIMS) and theoretical calculations. Mass spectra of octadecane were measured at various photon energies. The fragment ions were gradually detected with the increase of photon energy. The main fragment ions w...

Photoionization and photofragmentation of gaseous toluene using 80-fs, 800-nm laser pulses

and photofragmentation of gaseous toluene using 80-fs, 800-nm laser pulses" (2000). C. This paper presents ion yields resulting from multiphoton ionization and fragmentation of gaseous toluene (C 7 H 8) in the focus of an 80 fs Ti:sapphire laser beam (␭ϭ800 nm) with a sufficiently small B-integral ͓Siegman, Lasers ͑University Science Books, Mill Valley, CA, 1986͔͒. The peak intensity was varied bet...

Ultrafast intense-field photoionization and photofragmentation of systematic series of substituted organic molecules