Slow photoelectron velocity-map imaging of cold tert-butyl peroxide

Jessalyn A. DeVine, Marissa L. Weichman, Mark C. Babin, Daniel M. Neumark

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Photoelectron spectra of cryogenically cooled X∼1A′ tert-butyl peroxide anions are obtained using slow electron velocity-map imaging. The spectra show highly structured bands corresponding to detachment to the X∼2A″ and A∼2A′ electronic states of the neutral radical and represent a notable improvement in resolution over previous photoelectron spectra. We report an electron affinity of 1.1962(20) eV and a term energy T0(A∼2A′) of 0.9602(24) eV for the tert-butyl peroxy radical. New vibrational structure is resolved, providing several frequencies for both neutral states. Additionally, the threshold behavior of the photodetachment cross section is investigated within the context of Dyson orbital calculations.

Original languageEnglish (US)
Article number013915
JournalJournal of Chemical Physics
Issue number1
StatePublished - Jul 7 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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