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Journal Article

IR spectroscopy of gas-phase C₆₀⁻

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Kupser,  Peter
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Meijer,  Gerard
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Helden,  Gert von
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Kupser, P., Steill, J. D., Oomens, J., Meijer, G., & Helden, G. v. (2008). IR spectroscopy of gas-phase C₆₀⁻. Physical Chemistry Chemical Physics, 10(45), 6862-6866. doi:10.1039/b811862k.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-FBBF-4
Abstract
We present the IR spectrum of the gas-phase C₆₀⁻ anion. The C₆₀⁻ anions are mass-selected and
trapped in an ion cyclotron mass spectrometer cell. The spectrum is obtained by recording the
yield of electrons following infrared multiple photon absorption and subsequent electron
detachment of the anions. Two bands are observed that correlate to two of the four IR-allowed
transitions in neutral C₆₀. The results show that the higher frequency band is strongly shifted
from its position in neutral C₆₀ and is a sensitive marker for the charge state. The band positions
and intensities are compared to results obtained by theory as well as to known bands in solid
samples and good agreement is found.