Intracluster anionic oligomerization of acrylic ester molecules initiated by electron transfer from an alkali metal atom

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

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Stabilities and intracluster reactions have been investigated by photoionization mass spectrometry for clusters composed of an alkali metal atom (M; Na and K), and acrylic ester molecules, CH2=CHCO2R, such as methyl acrylate (MA; R = CH3) and ethyl acrylate (EA; R = C2H5). The following two features are commonly observed in the photoionization mass spectra of M(CH2=CHCO2R)n: (1) The ion with n = 3 is clearly observed as a magic number. (2) Fragmented cluster ions with the loss of ROH, [M(CH2=CHCO2R)n - ROH] are detected only for n = 3. These features are both explained by an intracluster oligomerization reaction initiated by electron transfer from the metal atoms. The magic number trimer is concluded to have the stable structure of cyclohexane derivatives as a result of oligomerization. The fragmentation reaction is explained by Dieckmann cyclization after anionic oligomerization to produce another isomer of the trimer. The intracluster electron transfer is also supported by theoretical calculation for Na(MA) based on density functional theory.

Original languageEnglish
Pages (from-to)683-690
Number of pages8
JournalJournal of the American Chemical Society
Volume123
Issue number4
DOIs
Publication statusPublished - 2001 Jan 31
Externally publishedYes

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Alkali Metals
Oligomerization
Alkali metals
Acrylics
Esters
Photoionization
Electrons
Ions
Atoms
Molecules
Cyclization
Mass Spectrometry
Metals
Cyclohexane
Isomers
Density functional theory
Mass spectrometry
Derivatives
methyl acrylate
ethyl acrylate

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Intracluster anionic oligomerization of acrylic ester molecules initiated by electron transfer from an alkali metal atom. / Tsunoyama, Hironori; Ohshimo, K.; Misaizu, F.; Ohno, K.

In: Journal of the American Chemical Society, Vol. 123, No. 4, 31.01.2001, p. 683-690.

Research output: Contribution to journalArticle

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