Dissociative electron attachment studies on acetone

Vaibhav S Prabhudesai; Vishvesh Tadsare; Sanat Ghosh; Krishnendu Gope; Daly Davis; E Krishnakumar

doi:10.1063/1.4898144

Dissociative electron attachment studies on acetone

J Chem Phys. 2014 Oct 28;141(16):164320. doi: 10.1063/1.4898144.

Authors

Vaibhav S Prabhudesai¹, Vishvesh Tadsare¹, Sanat Ghosh¹, Krishnendu Gope¹, Daly Davis¹, E Krishnakumar¹

Affiliation

¹ Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India.

PMID: 25362312
DOI: 10.1063/1.4898144

Abstract

Dissociative electron attachment (DEA) to acetone is studied in terms of the absolute cross section for various fragment channels in the electron energy range of 0-20 eV. H(-) is found to be the most dominant fragment followed by O(-) and OH(-) with only one resonance peak between 8 and 9 eV. The DEA dynamics is studied by measuring the angular distribution and kinetic energy distribution of fragment anions using Velocity Slice Imaging technique. The kinetic energy and angular distribution of H(-) and O(-) fragments suggest a many body break-up for the lone resonance observed. The ab initio calculations show that electron is captured in the multi-centered anti-bonding molecular orbital which would lead to a many body break-up of the resonance.