Size selective spectroscopy of Se microclusters

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Size selective spectroscopy of Se microclusters. / Kooser, K.; Ha, D. T.; Itala, E.; Laksman, Joakim; Urpelainen, Samuli; Kukk, E.

I: Journal of Chemical Physics, Vol. 137, Nr. 4, 2012.

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Kooser, K. ; Ha, D. T. ; Itala, E. ; Laksman, Joakim ; Urpelainen, Samuli ; Kukk, E. / Size selective spectroscopy of Se microclusters. I: Journal of Chemical Physics. 2012 ; Vol. 137, Nr. 4.

RIS

TY - JOUR

T1 - Size selective spectroscopy of Se microclusters

AU - Kooser, K.

AU - Ha, D. T.

AU - Itala, E.

AU - Laksman, Joakim

AU - Urpelainen, Samuli

AU - Kukk, E.

PY - 2012

Y1 - 2012

N2 - The electronic structure and photofragmentation in outer and inner valence regions of Se-n (n <= 8) clusters produced by direct vacuum evaporation have been studied with size-selective photoelectron-photoion coincidence technique by using vacuum-ultraviolet synchrotron radiation. The experimental ionization potentials of these clusters were extracted from the partial ion yield measurements. The calculations for the possible geometrical structures of the Se-n microclusters have been executed. The ionization energies of the clusters have been calculated and compared with the experimental results. In addition, theoretical fragment ion appearance energies were estimated. The dissociation energies of Se-n clusters were derived from the recurrent relation between the gas phase enthalpies of the formation of corresponding cationic clusters and experimental ionization energies. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737633]

AB - The electronic structure and photofragmentation in outer and inner valence regions of Se-n (n <= 8) clusters produced by direct vacuum evaporation have been studied with size-selective photoelectron-photoion coincidence technique by using vacuum-ultraviolet synchrotron radiation. The experimental ionization potentials of these clusters were extracted from the partial ion yield measurements. The calculations for the possible geometrical structures of the Se-n microclusters have been executed. The ionization energies of the clusters have been calculated and compared with the experimental results. In addition, theoretical fragment ion appearance energies were estimated. The dissociation energies of Se-n clusters were derived from the recurrent relation between the gas phase enthalpies of the formation of corresponding cationic clusters and experimental ionization energies. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737633]

U2 - 10.1063/1.4737633

DO - 10.1063/1.4737633

M3 - Article

VL - 137

JO - Journal of Chemical Physics

T2 - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 4

ER -