TY - JOUR
T1 - Penning ionization electron spectroscopy of CO 2 clusters in collision with metastable rare gas atoms
AU - Maruyama, Ryo
AU - Tanaka, Hideyasu
AU - Yamakita, Yoshihiro
AU - Misaizu, Fuminori
AU - Ohno, Koichi
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, Sports and Culture. H.T. is supported by the Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists. Financial support from Sumitomo Foundation, Kurata Foundation, and Mitsubishi Foundation is also acknowledged.
PY - 2000/9/1
Y1 - 2000/9/1
N2 - Penning ionization electron spectra (PIES) of CO2 clusters have been observed for the first time. An unusually fast electron band with excess kinetic energies of 1.4-2.9 eV with respect to the monomer band for the ionic X state was observed for CO2 clusters in collision with He*(23S) atoms. While for PIES with Ne*(33P), no such unusual band was observed. The unusual band is ascribed to autoionization into stable structures of ionic clusters to which direct ionization processes are almost impossible due to very small Franck-Condon overlaps associated with a very large geometry difference between the ionic and neutral clusters.
AB - Penning ionization electron spectra (PIES) of CO2 clusters have been observed for the first time. An unusually fast electron band with excess kinetic energies of 1.4-2.9 eV with respect to the monomer band for the ionic X state was observed for CO2 clusters in collision with He*(23S) atoms. While for PIES with Ne*(33P), no such unusual band was observed. The unusual band is ascribed to autoionization into stable structures of ionic clusters to which direct ionization processes are almost impossible due to very small Franck-Condon overlaps associated with a very large geometry difference between the ionic and neutral clusters.
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U2 - 10.1016/S0009-2614(00)00848-4
DO - 10.1016/S0009-2614(00)00848-4
M3 - Article
AN - SCOPUS:0039001630
SN - 0009-2614
VL - 327
SP - 104
EP - 110
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-2
ER -