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Reactions of propene and cyclopropane radical cations with neutral ethylene
Author(s) -
Vollmer D. L.,
Gross M. L.
Publication year - 1993
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210280309
Subject(s) - cyclopropane , propene , chemistry , adduct , ethylene , radical ion , photochemistry , reaction rate constant , radical , ion , medicinal chemistry , organic chemistry , kinetics , catalysis , ring (chemistry) , physics , quantum mechanics
The gas‐phase reactions of propene and cyclopropane radical cations with neutral ethylene were investigated by using Fourier transform, chemical ionization and tandem mass spectrometries. Both reactions form covalent C 5 H 10 adduct ions. The adduct ions are hypothesized to form initially as distonic radical cations that isomerize via a substituted cyclopropane intermediate and are detected as the most stable C 5 H 10 isomer, the 2‐methylbut‐2‐ene radical cation. The rate constant for each reaction is approximately 20% of the theoretical collision rate, indicating that product ions are formed in one out of every five collisions of the C 3 H 6 radical cations with neutral C 2 H 4 .
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