Negative ion formation in chloroacetyl chloride, trichloroacetyl chloride, and chloroacetaldehyde under low-energy electron impact

Autor:	Jale Hacaloglu, Ali Gökmen, Sefik Suzer
Rok vydání:	1990
Předmět:	Inorganic chemistry General Engineering Chloroacetyl chloride Mass spectrometry Charged particle Ion chemistry.chemical_compound chemistry Acyl chloride Acetyl chloride Trichloroacetyl chloride Physical chemistry Physical and Theoretical Chemistry Electron ionization
Zdroj:	The Journal of Physical Chemistry. 94:4412-4415
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100374a011
Popis:	Negative ion formation from ClCH{sub 2}COCl, CCl{sub 3}CoCl, and ClCH{sub 2}CHO under low-energy (0-10 eV) and monochromatic (0.2 eV) electron impact is studied by using a quadrupole mass filter and a trochoidal electron monochromator. Most of the ions produced are due to a dissociative attachment process and show resonance structure as the energy of the electron is varied. Cl{sup {minus}} ion is the dominant ion and is produced near 0.0 eV. Other ions, resulting from cleavage of C-Cl or C-H bonds, are also observed. Appearance potentials of RCO{sup {minus}} ions resulting from cleavage of a C-Cl bond are 1.0, 0.4, and 0.2 eV for acetyl chloride, chloroacetyl chloride, and trichloroacetyl chloride, respectively.
Databáze:	OpenAIRE
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