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

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)107-110
Number of pages4
JournalEuropean Physical Journal D
Volume8
Issue number3
DOIs
Publication statusPublished - 2001 Sep

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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