C60 and C70 Solvates Studied by Raman Spectroscopy

The formation and phase transformations of C60 and C70 solvates with benzene, toluene, and n-hexane have been studied in-solution by Raman spectroscopy for the first time. It was found that C60 and C70 solvates exhibit Raman spectra which are quite distinct from pure fullerenes and very similar to s...

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Published in:The journal of physical chemistry. B 2000-06, Vol.104 (21), p.5064-5071
Main Authors: Talyzin, A, Jansson, U
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Jansson, U
description The formation and phase transformations of C60 and C70 solvates with benzene, toluene, and n-hexane have been studied in-solution by Raman spectroscopy for the first time. It was found that C60 and C70 solvates exhibit Raman spectra which are quite distinct from pure fullerenes and very similar to spectra from fullerene-sulfur compounds. Two different solvates are found for the C60−toluene system in good agreement with recent DSC studies. Upon heating, all three solvates decompose to pure fcc C60 and all new peaks and shifts of peaks typical for the solvates disappear. No changes on Raman spectra of C60 and C70 solvates were found upon cooling to 78 K with the exception of the C70−benzene solvate which showed a broad phase transition around 263 K. Some possible explanations for the changes in Raman spectra are discussed.
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title C60 and C70 Solvates Studied by Raman Spectroscopy
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