Electron driven processes in chlorodifluoroacetic acid methyl ester*
Department of Chemistry, Siedlce University,
3 Maja 54, 08-110
a e-mail: email@example.com
Received in final form: 29 April 2014
Published online: 29 July 2014
Dissociative electron attachment to gas phase 2-chloro-2,2-difluoroacetic acid methyl ester (CClF2COOCH3) is studied by means of a crossed beams apparatus. Effective cleavage of the C-Cl bond is observed within a broad resonance in the energy range 0−1 eV and visible via the appearance of the light fragment Cl−. In chlorodifluoroacetic acid cleavage of the C-Cl bond was observed not only via the Cl− anion formation but predominantly via expulsion of the neutral chlorine atom leading to the formation of the (M-Cl)− anion. Similar to the previously studied esters CF3COOCH3 and CF3COOC2H5[I. Martin, J. Langer, E. Illenberger, Z. Phys. Chem. 222, 1185 (2008)], we observe reaction due to the cleavage of the ester bond resulting in the formation of the closed shell (M-CH3)− anion.
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