ELIMINATION AND ION MOLECULE REACTIONS OF HEXAMETHYLETHANE AND TRIMETHYLBUTANE RADICAL CATIONS IN ZSM-5

被引：13

作者：

BARNABAS, MV

WERST, DW

TRIFUNAC, AD

机构：

[1] Chemistry Division, Argonne National Laboratory, Argonne

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 204卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(93)89182-H

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：

Hexamethylethane (HME) and trimethylbutane (TMB) radical cations produced in ZSM-5 zeolite by gamma radiolysis undergo an elimination process followed by an ion-molecule reaction. The tetramethylethylene radical cation intermediate formed by CH4 elimination from TMB+. is observed directly in the temperature range 120-200 K. The deprotonation product, (CH3)3CC.(CH3)2, of the cation-molecule reaction is observed for temperatures > 200 K. The isobutene radical cation formed by elimination of C4H10 from HME+. is not observed - presumably because of rapid ion-molecule reaction to form the 2-methylallyl radical, which is observed.

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页码：435 / 439

页数：5

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