Details

Autor(en) / Beteiligte

• Wensink, Frank J.
• Münst, Maximilian G.
• Heller, Jakob
• Ončák, Milan
• Bakker, Joost M.
• van der Linde, Christian

Titel

IR multiple photon dissociation spectroscopy of MO2+ (M = V, Nb, Ta)

Ist Teil von

• The Journal of chemical physics, 2020-11, Vol.153 (17), p.171101-171101

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Scitation

Beschreibungen/Notizen

• A laser vaporization cluster source is coupled to the Fourier-transform ion cyclotron resonance mass spectrometer beamline of the free-electron laser for intracavity experiments. Gas phase metal ions and their oxides (VO2+, NbO2+, and TaO2+) are formed and spectroscopically characterized using IR multiple-photon dissociation spectroscopy via loss of atomic oxygen and overcoming fragmentation energies of 3 eV–6 eV. The signal is observed for all MO2+ fundamental modes: the symmetric and anti-symmetric ν1 and ν3 stretch modes in the 900 cm−1–1000 cm−1 range and the ν2 bending mode in the 300 cm−1–450 cm−1 range. A remarkable substructure is observed for the bending vibration, which is at least partly due to the rovibrational substructure.