We report a study of type-VIII and type-I Ba8Ga16Sn30. NMR lineshape measurements identify a broad first-order satellite resonance. Simulations for the type-I structure based on first principles calculations provided an excellent fit to the data, with the best agreement provided by configurations with 4 Ga-Ga bonds. However calculations indicate that preferred configurations should completely a...

this study aimed to construct the hydrate three-phase equilibrium curves for two typical iranian gas reservoir samples using a high-pressure visual cell. to do so, complete analysis of the reservoir fluids was obtained by different techniques of composition analysis i.e. gas chromatography (gc) and detailed hydrocarbon analysis (dha). using high-pressure visual cell the hydrate phase equilibriu...

In addition to their importance as abundant hydrocarbon deposits in nature, clathrate hydrates are being studied as potential media for hydrogen and carbon dioxide storage and as "nano-reactors" for small molecules. However, little is known about the behavior of reactive species in such materials. We have employed muon spin spectroscopy to characterize various organic free radicals that reside ...