Structural isomers of Ti2O4 and Zr2O 4 anions identified by slow photoelectron velocity-map imaging spectroscopy

Jongjin B. Kim, Marissa L. Weichman, Daniel M. Neumark

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

High-resolution anion photoelectron spectra are reported for the group 4 metal dioxide clusters Ti2O4- and Zr 2O4-. Slow photoelectron velocity-map imaging (SEVI) spectroscopy of cryogenically cooled, mass-selected anions yields photoelectron spectra with submillielectronvolt resolution, revealing extensive and well-resolved vibrational progressions. By comparison of the spectra with Franck-Condon simulations, we have identified the C2v and C 3v isomers as the ground states of Ti2O4 - and Zr2O4- anions, respectively. Minor contributions from the C2h isomer of Ti2O 4- and the C2v isomer of Zr2O 4- are also seen. The SEVI spectra yield upper bounds for the adiabatic detachment energies, as well as vibrational frequencies for various modes of the neutral Ti2O4 and Zr 2O4 species.

Original languageEnglish (US)
Pages (from-to)7159-7168
Number of pages10
JournalJournal of the American Chemical Society
Volume136
Issue number19
DOIs
StatePublished - May 14 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Structural isomers of Ti<sub>2</sub>O<sub>4</sub> and Zr<sub>2</sub>O <sub>4</sub> anions identified by slow photoelectron velocity-map imaging spectroscopy'. Together they form a unique fingerprint.

  • Cite this