Structure determination of small vanadium clusters by density-functional theory in comparison with experimental far-infrared spectra
J. Chem. Phys. 122, 124302 (2005); doi:10.1063/1.1862621
Published 25 March 2005
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The far-infrared vibrational spectra for charged vanadium clusters with sizes of 315 atoms have been measured using infrared multiple photon dissociation of V
Ar
V
+Ar. Using density-functional theory calculations, we calculated the ground state energy and vibrational spectra for a large number of stable and metastable geometries of such clusters. Comparison of the calculated vibrational spectra with those obtained in the experiment allows us to deduce the cluster size specific atomic structures. In several cases, a unique atomic structure can be identified, while in other cases our calculations suggest the presence of multiple isomers.
©2005 American Institute of Physics
V| History: | Received 7 December 2004; accepted 6 January 2005; published 25 March 2005 |
| Permalink: |
http://link.aip.org/link/?JCPSA6/122/124302/1 |
KEYWORDS and PACS
vibrational states,
infrared spectra,
density functional theory,
vanadium compounds,
atomic clusters,
positive ions,
molecule-photon collisions,
photodissociation,
multiphoton spectra,
isomerism,
ground states
- 36.40.Mr
Spectroscopy and geometrical structure of atomic and molecular clusters - 36.40.Wa
Charged atomic and molecular clusters - 33.20.Ea
Infrared molecular spectra - 33.20.Tp
Vibrational analysis (molecular spectra) - 33.80.Gj
Diffuse molecular spectra; predissociation, photodissociation - 33.80.Wz
Other multiphoton processes in molecules - 31.15.Ew
Density-functional theory (atoms and molecules) - 33.15.Bh
General molecular conformation and symmetry; stereochemistry - 33.15.Mt
Molecular rotation, vibration, and vibration-rotation constants - YEAR: 2005
RELATED DATABASES
PUBLICATION DATA
0021-9606 (print)
1089-7690 (online)
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