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Gas‐phase ion–molecule reactions of neutral C 60 with alkyl methyl ethers under chemical ionization conditions
Author(s) -
Ma Li,
Liu Ziyang,
Xu Yaping,
Wang Weijie,
Guo Xinghua,
Liu Shuying
Publication year - 1998
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19980630)12:12<790::aid-rcm222>3.0.co;2-i
Subject(s) - chemistry , adduct , protonation , chemical ionization , mass spectrometry , molecule , alkyl , ion , electron ionization , ionization , buckminsterfullerene , proton affinity , polyatomic ion , photochemistry , medicinal chemistry , organic chemistry , chromatography
Abstract Gas‐phase ion–molecule reactions of buckminsterfullerene (C 60 ) with the ion systems generated from the self‐chemical ionization of alkyl methyl ethers (CH 3 OR, R = n ‐C 2 H 5 , n ‐C 3 H 7 , n ‐C 4 H 9 ) were studied in the ion source of a mass spectrometer. The adduct cation [C 60 C 2 H 5 O] + and protonated molecule [C 60 H] + were observed as the major products. The former adduct ion was produced by the reactions of C 60 with the methoxymethyl ion [CH 3 OCH 2 ] + , and the latter resulted from the proton transfer reactions from protonated alkyl methyl ethers to C 60 . It is suggested that the [3+2] cycloadduct to a 6–6 bond of C 60 (a C–C bond common to two annulated six‐membered rings) is the most favorable structure among the probable isomers of [C 60 C 2 H 5 O] + . © 1998 John Wiley & Sons, Ltd.