Electron driven processes in chlorodifluoroacetic acid methyl ester

Janina Kopyra

doi:10.1140/epjd/e2014-50089-3

2021 Impact factor 1.611

Atomic, Molecular, Optical and Plasma Physics

Topical issue: Electron and Positron Induced Processes. Guest editors: Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma

Open Access

Eur. Phys. J. D (2014) 68: 202
https://doi.org/10.1140/epjd/e2014-50089-3

Regular Article

Electron driven processes in chlorodifluoroacetic acid methyl ester^*

Janina Kopyra^a

Department of Chemistry, Siedlce University, 3 Maja 54, 08-110 Siedlce, Poland

^a e-mail: kopyra@uph.edu.pl

Received: 31 January 2014
Received in final form: 29 April 2014
Published online: 29 July 2014

Abstract

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.

Contribution to the Topical Issue “Electron and Positron Induced Processes”, edited by Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma.

© The Author(s) 2014. This article is published with open access at Springerlink.com

This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.