Low Frequency Raman Profile of Type II Clathrate Hydrate of THF and Its Application for Phase Identification (Cross-disciplinary Physics and Related Areas of Science and Technology)

概要

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Low frequency Raman profiles of type II clathrate hydrate (CH) of various guest molecules have been studied and their common feature, the sharp peak at 60cm^<-1>, was identified as the most dominant low frequency Raman characteristics of those system. The broad peak at 20cm^<-1> was found to have strong dependence on the guest molecules. The spectral features around 210cm^<-1> of the CH were similar to that of ice I_h shifted slightly toward lower frequency side. Using these low frequency Raman profile of type II CH, the phase diagram of tetrahydrofuran-water system was constructed and compared to the phase diagram constructed with other method to test the usability of those Raman profiles.
社団法人日本物理学会の論文
2003-05-15