TY - JOUR
T1 - Photoionization mass spectroscopy of clusters of alkali metal atoms with methyl vinyl ketone and acrolein
T2 - Intracluster oligomerization initiated by electron transfer from a metal atom
AU - Ohshimo, Keijiro
AU - Furuya, Ari
AU - Tsunoyama, Hironori
AU - Misaizu, Fuminori
AU - Ohno, Koichi
N1 - Funding Information:
This work was partly supported by a Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Science, Sports and Culture. K. Ohshimo is supported by a Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists. F.M. also acknowledges financial support from the Kurata Foundation and Mitsubishi Foundation.
PY - 2002/4/15
Y1 - 2002/4/15
N2 - We have investigated the photoionization mass spectrometry of clusters of an alkali metal atom (M: Na and K) and methyl vinyl ketone (MVK) or acrolein (AC) to discuss the intracluster oligomerization. In the mass spectra of M(MVK)n, strong ion signals at n=3 are observed. This magic number is explained by the cyclohexane derivative formation in the intracluster oligomerization of MVK initiated by electron transfer from an alkali metal atom. The results of the calculation for Na(MVK) based on density functional theory also show the presence of intracluster electron transfer. On the other hand, in M(AC)n, intensity enhancement is observed at n=4. These intensity enhancements may be due to intracluster reaction in M(AC)n, which is different from the case of M(MVK)n.
AB - We have investigated the photoionization mass spectrometry of clusters of an alkali metal atom (M: Na and K) and methyl vinyl ketone (MVK) or acrolein (AC) to discuss the intracluster oligomerization. In the mass spectra of M(MVK)n, strong ion signals at n=3 are observed. This magic number is explained by the cyclohexane derivative formation in the intracluster oligomerization of MVK initiated by electron transfer from an alkali metal atom. The results of the calculation for Na(MVK) based on density functional theory also show the presence of intracluster electron transfer. On the other hand, in M(AC)n, intensity enhancement is observed at n=4. These intensity enhancements may be due to intracluster reaction in M(AC)n, which is different from the case of M(MVK)n.
KW - Intracluster reaction
KW - Oligomerization
KW - Photoionization
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U2 - 10.1016/S1387-3806(02)00548-1
DO - 10.1016/S1387-3806(02)00548-1
M3 - Article
AN - SCOPUS:0037090558
SN - 1387-3806
VL - 216
SP - 29
EP - 40
JO - International Journal of Mass Spectrometry and Ion Processes
JF - International Journal of Mass Spectrometry and Ion Processes
IS - 1-2
ER -