PROXIMITY EFFECTS IN MASS-SPECTROMETRY - ELECTRON-IMPACT IONIZATION-INDUCED CYCLIZATION OF 1,2-BIS(1,4-DITHIAFULVEN-6-YL)BENZENES

被引：5

作者：

FRERE, P ^{[1
]}

GORGUES, A ^{[1
]}

GARIN, J ^{[1
]}

ORDUNA, J ^{[1
]}

机构：

[1] UNIV ZARAGOZA,ICMA,FAC CIENCIAS,DEPT QUIM ORGAN,E-50009 ZARAGOZA,SPAIN

来源：

ORGANIC MASS SPECTROMETRY | 1994年 / 29卷 / 10期

关键词：

D O I：

10.1002/oms.1210291011

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The electron impact ionization mass spectra of o-, m- and p-bis(1,4-dithiafulven-6-yl)benzenes were studied by means of accurate mass measurements, metastable analysis and collision-induced dissociation. Differences observed in the spectra of the ortho isomers are due to a cyclization reaction leading to molecular ions with the same structure as those generated from certain cyclic compounds, as confirmed by comparison of linked scans at constant B/E of metastable and collisionally activated molecular ions. Parallels of this cyclization of molecular ions with their electrochemical or acid-induced isomerization are also discussed.

引用

页码：571 / 574

页数：4

共 16 条

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