STRUCTURES OF [C4H4O]+.IONS PRODUCED FROM 2-PYRONE AND 4-PYRONE

被引：33

作者：

HOLMES, JL ^{[1
]}

TERLOUW, JK ^{[1
]}

机构：

[1] STATE UNIV UTRECHT,UTRECHT,NETHERLANDS

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1979年 / 101卷 / 17期

关键词：

D O I：

10.1021/ja00511a029

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Contrary to earlier conclusions, the nonfragmenting [C4H40]+- ions generated by loss of CO from 2-and 4-pyrone mainly have the [furan]+structure; some [vinylketene]+ions are also generated. This conclusion was drawn from examination of the collisional activation spectra of [C4H40]+. ions of known structure and from measurements of the heats of formation of the molecular ions of 11 isomeric [C4H40]+. species. It was further concluded that no firm structural assignment can be made for the [C4H40]+. ions having sufficient internal energy to fragment on the microsecond time scale. © 1979, American Chemical Society. All rights reserved.

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页码：4973 / 4975

页数：3

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