Definitive evidence for the existence of a long-lived vinylidene radical cation, H2C=C+.

被引：22

作者：

Hayakawa, S

Takahashi, M

Arakawa, K

Morishita, N

机构：

[1] Univ Osaka Prefecture, Coll Integrated Arts & Sci, Sakai, Osaka 5998531, Japan

[2] Japan Atom Energy Res Inst, Takasaki Radiat Chem Res Estab, Takasaki, Gumma 3701292, Japan

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 06期

关键词：

D O I：

10.1063/1.477875

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Charge inversion mass spectra of C2H2+ ions produced by electron impact from HC=CH and CH2=CCl2 were measured using K and Cs targets. Clear differences in the charge inversion spectra between HC=CH and CH2=CCl2 indicate that the C2H2+ ion formed from CH2CCl2 is H2C=C+. The lifetime of H2C=C+. is found to be longer than 8.5 mu s, and the state is proposed to be the B-2(1) ground- state rather than the (4)A(2) state. (C) 1999 American Institute of Physics. [S0021-9606(99)02006-1].

引用

收藏

页码：2745 / 2748

页数：4

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