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Updated: Jul 11, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Dissociation processes of ionized freons: CHFCl2+ and CF2Cl2+ in the gas phase
Allan Christian Petersen1, Theis Ivan Sølling2
1Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen, DK 2100, Denmark.
Abstract:
The present study reveals the effects of symmetry on how the distribution and flow of energy play out on the decomposition of small halocarbons. Unimolecular decay of the freons CHFCl2 and CF2Cl2 when ionized has been investigated. Mass spectrometric results that encompass isotope effects (peak heights) and energy distribution in the exit channel (peak shapes) are interpreted by computational methods. Non-statistical processes of electronic predissociation and isolated state decay are shown to be directly associated with molecular symmetry.
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