Abstract
Micro-Raman spectra have been recorded of TaCl 5–GIC before and after a 3 h treatment with water at 95°C and an additional treatment for one month in ambient air afterwards. Pristine TaCl 5–GIC shows a Raman spectrum typical for a second stage acceptor graphite intercalation compound (GIC) with one strong band centered at 1616 cm −1. It can be split into two components and is always accompanied by a small band at 1590 cm −1. Hydrolytic treatment resulted in a variety of modified spectra. Band shifts, changes in relative intensity and changes in band width can be correlated to each other and to different grades of hydrolysis. Continuous variation of the spectra gave no hint for a specific intermediate product between second stage TaCl 5–GIC and deintercalated graphite.
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