title: Nucleophilic reactions of bromocyclopentane in the structure-H methane + bromocyclopentane mixed hydrate system at high pressures.
abstract: Thermodynamic stability boundary in the structure-H methane + bromocyclopentane mixed hydrate system was measured at pressures from 20 to 100 MPa. The thermodynamic stability boundary of the methane + bromocyclopentane mixed hydrate exhibits anomalous behavior under conditions at high pressures and high temperatures. This phenomenon is due to the elimination and substitution reactions of bromocyclopentane to cyclopentene and cyclopentanol, respectively. The nucleophilic reactions of bromocyclopentane are mainly advanced in the liquid bromocyclopentane-rich phases, while it is restrained when bromocyclopentane is enclathrated in hydrate cage.
authors.affiliation: Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
authors.forename: Yuuki
authors.initials: Y
authors.lastname: Matsumoto
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Katsuta
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Kamo
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Bando
authors.forename: Takashi
authors.initials: T
authors.lastname: Makino
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sugahara
authors.forename: Kazunari
authors.initials: K
authors.lastname: Ohgaki