https://doi.org/10.1140/epjd/e2003-00109-6
Infrared multiple photon dissociation spectroscopy of transition metal oxide cluster cations
Comparison of group Vb (V, Nb, Ta) metal oxide clusters
1
FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands
2
Department of Molecular and Laser Physics, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The
Netherlands
3
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
Corresponding author: a fielicke@rijnh.nl
Received:
10
September
2002
Published online:
3
July
2003
Infrared spectra in the range of 530–1400 cm-1 are presented for tantalum oxide cluster cations TaxO
(x=3, 4 and 6). These spectra are obtained via multiple photon dissociation (MPD) spectroscopy of free cluster cations moving in a molecular beam. The IR spectra for TaxO are compared to spectra of NbxO as well as to the experimental data available for vanadium oxide cluster cations from IR-MPD spectroscopy. For TaxO and NbxO the IR spectra exhibit very strong similarities (including the band positions), whereas absorption bands in VxO are relatively blue-shifted by about 20–40 cm-1.
PACS: 36.40.-c – Atomic and molecular clusters / 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals / 82.80.Gk – Analytical methods involving vibrational spectroscopy
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
