Raman modes of the two-dimensional tetragonal polymeric phase of C60 under high pressure

J. Arvanitidis; K. P. Meletov; K. Papagelis; S. Ves; G. A. Kourouklis; A. Soldatov; K. Prassides

doi:10.1063/1.1367388

Raman modes of the two-dimensional tetragonal polymeric phase of C₆₀ under high pressure

J. Arvanitidis, K. P. Meletov, K. Papagelis, S. Ves, G. A. Kourouklis, A. Soldatov, K. Prassides

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The material stability of the two-dimensional (2D) tetragonal C₆₀ polymer and the phonon spectrum at a high hydrostatic pressure, up to 12 GPa, was studied using Raman spectroscopy in the frequency range of 100-2000 cm^-1. Modes exhibiting increasing intensities with an increase in pressure were observed in the spectrum for pressures above ≅1.4 GPa. The observed pressure induced effects were due to the anisotropy in inermolecular bonding of the polymer. Molecular cage deformations accounted for the new peaks with changed intensities while modification of the material to a more isotropic phase with respect to its elastic properties accounted for the changes of pressure coefficients of the several modes.

Original language	English
Pages (from-to)	9099-9104
Number of pages	6
Journal	Journal of Chemical Physics
Volume	114
Issue number	20
DOIs	https://doi.org/10.1063/1.1367388
Publication status	Published - 2001 May 22

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "The material stability of the two-dimensional (2D) tetragonal C60 polymer and the phonon spectrum at a high hydrostatic pressure, up to 12 GPa, was studied using Raman spectroscopy in the frequency range of 100-2000 cm-1. Modes exhibiting increasing intensities with an increase in pressure were observed in the spectrum for pressures above ≅1.4 GPa. The observed pressure induced effects were due to the anisotropy in inermolecular bonding of the polymer. Molecular cage deformations accounted for the new peaks with changed intensities while modification of the material to a more isotropic phase with respect to its elastic properties accounted for the changes of pressure coefficients of the several modes.",

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AU - Arvanitidis, J.

AU - Meletov, K. P.

AU - Papagelis, K.

AU - Ves, S.

AU - Kourouklis, G. A.

AU - Soldatov, A.

AU - Prassides, K.

PY - 2001/5/22

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N2 - The material stability of the two-dimensional (2D) tetragonal C60 polymer and the phonon spectrum at a high hydrostatic pressure, up to 12 GPa, was studied using Raman spectroscopy in the frequency range of 100-2000 cm-1. Modes exhibiting increasing intensities with an increase in pressure were observed in the spectrum for pressures above ≅1.4 GPa. The observed pressure induced effects were due to the anisotropy in inermolecular bonding of the polymer. Molecular cage deformations accounted for the new peaks with changed intensities while modification of the material to a more isotropic phase with respect to its elastic properties accounted for the changes of pressure coefficients of the several modes.

AB - The material stability of the two-dimensional (2D) tetragonal C60 polymer and the phonon spectrum at a high hydrostatic pressure, up to 12 GPa, was studied using Raman spectroscopy in the frequency range of 100-2000 cm-1. Modes exhibiting increasing intensities with an increase in pressure were observed in the spectrum for pressures above ≅1.4 GPa. The observed pressure induced effects were due to the anisotropy in inermolecular bonding of the polymer. Molecular cage deformations accounted for the new peaks with changed intensities while modification of the material to a more isotropic phase with respect to its elastic properties accounted for the changes of pressure coefficients of the several modes.

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