Kinetic-energy release distributions of fragment anions from collisions of potassium atoms with D-Ribose and tetrahydrofuran

André Rebelo, Tiago Cunha, Monica Mendes, Filipe Ferreira da Silva, Gustavo Garcia, Paulo Limao-Vieira

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1 Citation (Scopus)

Abstract

Kinetic-energy release distributions have been obtained from the width and shapes of the time-of-flight (TOF) negative ion mass peaks formed in collisions of fast potassium atoms with D-Ribose (DR) and tetrahydrofuran (THF) molecules. Recent dissociative ion-pair formation experiments yielding anion formation have shown that the dominant fragment from D-Ribose is OH [D. Almeida, F. Ferreira da Silva, G. Garcia, P. Limao-Vieira, J. Chem. Phys. 139, 114304 (2013)] whereas in the case of THF is O[ D. Almeida, F. Ferreira da Silva, S. Eden, G. Garcia, P. Limao-Vieira, J. Phys. Chem. A 118, 690 (2014)]. The results for DR and THF show an energy distribution profile reminiscent of statistical degradation via vibrational excitation and partly due to direct transformation of the excess energy in translational energy.
Original languageEnglish
Article number130
JournalEuropean Physical Journal D
Volume70
Issue number6
DOIs
Publication statusPublished - 7 Jun 2016

Keywords

  • DISSOCIATIVE ELECTRON-ATTACHMENT
  • NEGATIVE-ION FORMATION
  • MOLECULE COLLISIONS
  • CROSS-SECTIONS
  • SELECTIVITY
  • CLEAVAGE
  • ETHERS
  • STATES
  • BONDS
  • BASES

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