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- W2022974344 abstract "Abstract Dissociative electron attachment (DEA) to CHClBr2 has been studied in a crossed electron/molecular beams experiment in the electron energy range between 0 and 8 eV and in the gas temperature range from 321 to 475 K. In this electron energy range we have found two negative fragment ions Cl− and Br− which are formed from a prominent low energy resonant feature (∼0 eV) and at resonances at about 0.4 and 4.7 eV. The molecular ion ClBr−, in contrast to the swarm experiment, was not observed in the beam experiment. The total absolute cross-section for DEA has a value of 1.4(±0.2)×10−20 m2 at 0.4 eV and 5(±2)×10−22 m2 at 4.7 eV. The total DEA cross-section and the DEA cross-section for Br− reaction channel are temperature independent at low electron energies (∼0 eV). The cross-section for Cl− reaction channel at ∼0 eV increases with the gas temperature and for this reaction channel we have derived activation energy of 42(±15) meV. The enthalpies of the DEA reaction and CCl and CBr bonds have been calculated at G2MP2 and G2 level of theory. The DEA reaction has been found exothermic for both reaction channels." @default.
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- W2022974344 date "2004-04-01" @default.
- W2022974344 modified "2023-09-23" @default.
- W2022974344 title "Temperature dependence of electron attachment to CHCLBr2: crossed beams study" @default.
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- W2022974344 doi "https://doi.org/10.1016/j.ijms.2003.12.017" @default.
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