Temperature-dependent Raman study on C70 film. Observation of a rotational ordering transition

Eun joo Shin; Ok Keun Song; Dongho Kim; Yung Doug Suh; Sung Ik Yang; Seong Keun Kim

doi:10.1016/0009-2614(93)E1452-M

Temperature-dependent Raman study on C₇₀ film. Observation of a rotational ordering transition

Eun joo Shin, Ok Keun Song, Dongho Kim, Yung Doug Suh, Sung Ik Yang, Seong Keun Kim

Department of Chemistry

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

3 Citations (Scopus)

Abstract

An orientational ordering transition was observed near 260 K from a C₇₀ film in a temperature-dependent Raman study. The 1183 cm^-1 Raman band shows a rather dramatic change in both frequency and bandwidth over the range of 220-280 K. The low-frequency Raman band at 260 cm^-1 disappears, and at its expense, a new band emerges at 266 cm^-1 as the temperature is decreased. The relatively smooth transition in temperature is attributed to the stacking disorder in molecular packing and the nonuniform orientational conformation of C₇₀ solid.

Original language	English
Pages (from-to)	107-114
Number of pages	8
Journal	Chemical Physics Letters
Volume	218
Issue number	1-2
DOIs	https://doi.org/10.1016/0009-2614(93)E1452-M
Publication status	Published - 1994 Feb 4

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0009-2614(93)E1452-M

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abstract = "An orientational ordering transition was observed near 260 K from a C70 film in a temperature-dependent Raman study. The 1183 cm-1 Raman band shows a rather dramatic change in both frequency and bandwidth over the range of 220-280 K. The low-frequency Raman band at 260 cm-1 disappears, and at its expense, a new band emerges at 266 cm-1 as the temperature is decreased. The relatively smooth transition in temperature is attributed to the stacking disorder in molecular packing and the nonuniform orientational conformation of C70 solid.",

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AU - Shin, Eun joo

AU - Song, Ok Keun

AU - Kim, Dongho

AU - Doug Suh, Yung

AU - Ik Yang, Sung

AU - Keun Kim, Seong

PY - 1994/2/4

Y1 - 1994/2/4

N2 - An orientational ordering transition was observed near 260 K from a C70 film in a temperature-dependent Raman study. The 1183 cm-1 Raman band shows a rather dramatic change in both frequency and bandwidth over the range of 220-280 K. The low-frequency Raman band at 260 cm-1 disappears, and at its expense, a new band emerges at 266 cm-1 as the temperature is decreased. The relatively smooth transition in temperature is attributed to the stacking disorder in molecular packing and the nonuniform orientational conformation of C70 solid.

AB - An orientational ordering transition was observed near 260 K from a C70 film in a temperature-dependent Raman study. The 1183 cm-1 Raman band shows a rather dramatic change in both frequency and bandwidth over the range of 220-280 K. The low-frequency Raman band at 260 cm-1 disappears, and at its expense, a new band emerges at 266 cm-1 as the temperature is decreased. The relatively smooth transition in temperature is attributed to the stacking disorder in molecular packing and the nonuniform orientational conformation of C70 solid.

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Temperature-dependent Raman study on C₇₀ film. Observation of a rotational ordering transition

Abstract

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