title: Intermolecular hydrogen transfer between guest species in small and large cages of methane + propane mixed gas hydrates.
abstract: To investigate the molecular interaction between guest species inside of the small and large cages of methane + propane mixed gas hydrates, thermal stabilities of the methyl radical (possibly induced in small cages) and the normal propyl and isopropyl radicals (induced in large cages) were investigated by means of electron spin resonance measurements. The increase of the total amount of the normal propyl and isopropyl radicals reveals that the methyl radical in the small cage withdraws one hydrogen atom from the propane molecule enclathrated in the adjacent large cage of the structure-II hydrate. A guest species in a hydrate cage has the ability to interact closely with the other one in the adjacent cages. The clathrate hydrate may be utilized as a possible nanoscale reaction field.
authors.affiliation: Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sugahara
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Tani
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Inoue
authors.forename: Kazunari
authors.initials: K
authors.lastname: Ohgaki
mesh_terms: D005740:Gases / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry*; D008697:Methane / Q000737:chemistry*; D011407:Propane / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D005740:Gases; D014867:Water; D006859:Hydrogen; D008697:Methane; D011407:Propane