title: Encapsulation of anionic guests in a new hydantoinylamido molecular capsule.
abstract: Resorcin[4]arene-based tetrakis(N-hydantoinylamido)cavitand 1 forms a stable molecular capsule in the presence of suitable anionic guests such as CH(3)OSO(3)(-) or BF(4)(-) in C(2)D(2)Cl(4). Molecular capsule G(2)@1(2) is stabilized by the eight intermolecular imide N-H···O═C hydrogen bondings, two from each four paired hydantoinyl units, and the eight intramolecular amide N-H···O-CH(2)-O hydrogen bondings, four on each two cavitands. The formations of molecular capsules were confirmed by (1)H, 2D NOESY, and 2D-DOSY NMR.
authors: Department of Chemistry, Soongsil University, Seoul 156-743, Korea.
authors: Yeon Sil
authors: YS
authors: Park
authors: Sungjong
authors: S
authors: Seo
authors: Eun-Hee
authors: EH
authors: Kim
authors: Kyungsoo
authors: K
authors: Paek