In situ Raman spectroscopic measurements were performed in a CO2 + H2O
system. When aqueous CO2 coexisted with the hydrate, CO2 spectra were
different from those obtained when the hydrate was absent. Spectral a
nalysis indicated that the water structure surrounding a CO2 molecule
in solutions with hydrates resembled conditions in the hydrate. (C) 19
97 Elsevier Science Ltd.