title: Inclusion behavior of thiacalix[4]arenetetrasulfonate toward water-miscible organic molecules studied by salting-out and X-ray crystallography.
abstract: [reaction: see text] Inclusion ability of thiacalix[4]arenetetrasulfonate (TCAS) toward water-miscible organic molecules such as alcohols, ketones, cyclic ethers, and so on was studied by salting-out of the inclusion complex. NMR spectra of the recovered precipitates showed size selectivity to include the guest molecules. X-ray crystallographic analyses of TCAS salts including acetone and 1,4-dioxane suggested that guests are retained with the aid of cation coordination and H-bonding.
authors.affiliation: Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aramaki-Aoba 07, Aoba-ku, Sendai 980-8579, Japan. iki@orgsynth.che.tohoku.ac.jp
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Iki
authors.forename: Takehiro
authors.initials: T
authors.lastname: Suzuki
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Koyama
authors.forename: Chizuko
authors.initials: C
authors.lastname: Kabuto
authors.forename: Sotaro
authors.initials: S
authors.lastname: Miyano