title: Superoxide ions entrapped in water cages of ionic clathrate hydrates.
abstract: In the present work, we first described the stable entrapment of the superoxide ions in gamma-irradiated (Me(4)NOH + O(2)) clathrate hydrate. Owing to peculiar direct guest-guest ionic interaction, the lattice structure of gamma-irradiated (Me(4)NOH + O(2)) clathrate hydrate shows significant change of lattice contraction behavior even at relatively high temperature (120 K). Such findings are expected to provide useful information for a better understanding of unrevealed nature (such as icy nanoreactor concept, ice-based functional material synthesis and lattice tuning by specific ionic guests) of clathrate hydrate fields.
authors.affiliation: Department of Chemical and Biomolecular Engineering (BK21 program) and Graduate School of EEWS, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon 305-701, Republic of Korea.
authors.forename: Minjun
authors.initials: M
authors.lastname: Cha
authors.forename: Kyuchul
authors.initials: K
authors.lastname: Shin
authors.forename: Minchul
authors.initials: M
authors.lastname: Kwon
authors.forename: Dong-Yeun
authors.initials: DY
authors.lastname: Koh
authors.forename: Boram
authors.initials: B
authors.lastname: Sung
authors.forename: Huen
authors.initials: H
authors.lastname: Lee