A Vibrational Spectroscopic Study of Endohedral Li@C60 Fullerenes

H. Jantoljak; I. Loa; A. P. Litvinchuk; C. Thomsen; N. Krawez; R. Tellgmann; E. E.B. Campbell

doi:10.1524/zpch.1997.200.Part_1_2.157

A Vibrational Spectroscopic Study of Endohedral Li@C₆₀ Fullerenes

H. Jantoljak, I. Loa, A. P. Litvinchuk, C. Thomsen, N. Krawez, R. Tellgmann, E. E.B. Campbell

Department of Physics

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16 Scopus citations

Abstract

We report on Raman and Fourier-transform infrared spectroscopy studies on lithium- implanted fullerene films containing endohedral Li@C_t>60. The measurements were performed as a function of temperature, polarization and time. They exhibit some significant differences compared to the pristine material: a broad band in the range 300-600 cm ¹ where the vibrational and rotational modes of endohedral Li were predicted, a strong broadening of the internal modes, a lineshift of the A_g(l) and A_g(2) modes and a change in the relative intensities and the depolarization ratios. A striking result is the temporal change in the spectra on the time scale of a few weeks.

Original language	English
Pages (from-to)	157-164
Number of pages	8
Journal	Zeitschrift fur Physikalische Chemie
Volume	200
Issue number	PART_1_2
DOIs	https://doi.org/10.1524/zpch.1997.200.Part_1_2.157
State	Published - Jan 1997

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10.1524/zpch.1997.200.Part_1_2.157

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title = "A Vibrational Spectroscopic Study of Endohedral Li@C60 Fullerenes",

abstract = "We report on Raman and Fourier-transform infrared spectroscopy studies on lithium- implanted fullerene films containing endohedral Li@Ct>60. The measurements were performed as a function of temperature, polarization and time. They exhibit some significant differences compared to the pristine material: a broad band in the range 300-600 cm 1 where the vibrational and rotational modes of endohedral Li were predicted, a strong broadening of the internal modes, a lineshift of the Ag(l) and Ag(2) modes and a change in the relative intensities and the depolarization ratios. A striking result is the temporal change in the spectra on the time scale of a few weeks.",

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AU - Jantoljak, H.

AU - Loa, I.

AU - Litvinchuk, A. P.

AU - Thomsen, C.

AU - Krawez, N.

AU - Tellgmann, R.

AU - Campbell, E. E.B.

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N2 - We report on Raman and Fourier-transform infrared spectroscopy studies on lithium- implanted fullerene films containing endohedral Li@Ct>60. The measurements were performed as a function of temperature, polarization and time. They exhibit some significant differences compared to the pristine material: a broad band in the range 300-600 cm 1 where the vibrational and rotational modes of endohedral Li were predicted, a strong broadening of the internal modes, a lineshift of the Ag(l) and Ag(2) modes and a change in the relative intensities and the depolarization ratios. A striking result is the temporal change in the spectra on the time scale of a few weeks.

AB - We report on Raman and Fourier-transform infrared spectroscopy studies on lithium- implanted fullerene films containing endohedral Li@Ct>60. The measurements were performed as a function of temperature, polarization and time. They exhibit some significant differences compared to the pristine material: a broad band in the range 300-600 cm 1 where the vibrational and rotational modes of endohedral Li were predicted, a strong broadening of the internal modes, a lineshift of the Ag(l) and Ag(2) modes and a change in the relative intensities and the depolarization ratios. A striking result is the temporal change in the spectra on the time scale of a few weeks.

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A Vibrational Spectroscopic Study of Endohedral Li@C60 Fullerenes

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A Vibrational Spectroscopic Study of Endohedral Li@C₆₀ Fullerenes