| 초록 |
Clathrate hydrates are the types of inclusion compounds which are stabilized by physical interaction, such as van der Waals, between host-guest systems without direct guest-guest interaction. Lattice constant of gas hydrate is a characteristic value for determining physico-chemical variables of hydrate structure. Here, we firstly described the lattice contraction behavior occurring in γirradiated Me4NOH + O2 hydrate due to the stable entrapment of the superoxide ions in γirradiated Me4NOH + O2 hydrate. Owing to peculiar direct guest-guest ionic interaction, the lattice structure of γirradiated Me4NOH + O2 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 of clathrate hydrate fields. |
