REACTIONS OF IONIZED NORMAL-PROPAN-1-OL IN THE GAS-PHASE

被引:13
作者
BOWEN, RD [1 ]
COLBURN, AW [1 ]
DERRICK, PJ [1 ]
机构
[1] UNIV WARWICK, DEPT CHEM, COVENTRY CV4 7AL, W MIDLANDS, ENGLAND
关键词
D O I
10.1021/ja00004a011
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reactions of metastable ionized n-propan-1-ol have been reinvestigated by means of extensive H-2-labeling experiments. The major fragmentation, by loss of water, proceeds by a specific and unidirectional 1,4-hydrogen migration from the methyl group to the oxygen atom. Collision-induced dissociation of the M.+ and [M-H2O].+ ions is consistent with the involvement of the distonic ion .CH2CH2CH2OH2+ and, probably, the ion-neutral complex CH2CH2CH2.+OH2 in water elimination. A very minor amount of hydrogen atom expulsion also occurs from metastable CH3CH2CH2OH.+ radical cations; this process involves only the alpha-hydrogen atoms. Both water and hydrogen atom losses manifest extremely large deuterium isotope effects.
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页码:1132 / 1137
页数:6
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