Intracluster electron transfer from a metal atom/cluster followed by anionic oligomerization of vinyl molecules

K. Ohshimo, H. Tsunoyama, F. Misaizu, K. Ohno

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Intracluster electron transfer and oligomerization reaction were investigated by mass spectrometry of clusters of alkali metal atom (M) with acrylonitrile (AN; CH2=CHCN). In the photoionization mass spectra of M(AN)n, magic numbers were clearly observed at n = 3k (k = 1-4 for M = Na and K, k = 1 for M = Li). The results of photodissociation of neutral K(AN)n indicate that the n = 3 cluster has an anomalous stability relative to other sizes of clusters. The C=C bond in vinyl molecules is also found to be necessary to form the magic numbers by measuring the photoionization mass spectrum of K atom with propionitrile. These results strongly support the intracluster anionic oligomerization reaction initiated by electron transfer from the alkali atom. The quantum chemical calculations have revealed that the evaporation induced by excess energy generated by intracluster oligomerization is important to form the magic numbers in the present clusters.

本文言語English
ページ(範囲)107-110
ページ数4
ジャーナルEuropean Physical Journal D
8
3
DOI
出版ステータスPublished - 2001 9月

ASJC Scopus subject areas

  • 原子分子物理学および光学

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