title: Conductive Hybrid Crystal Composed from Polyoxomolybdate and Deprotonatable Ionic-Liquid Surfactant.
abstract: A polyoxomolybdate inorganic-organic hybrid crystal was synthesized with deprotonatable ionic-liquid surfactant. 1-dodecylimidazolium cation was employed for its synthesis. The hybrid crystal contained δ-type octamolybdate (Mo₈) isomer, and possessed alternate stacking of Mo₈ monolayers and interdigitated surfactant bilayers. The crystal structure was compared with polyoxomolybdate hybrid crystals comprising 1-dodecyl-3-methylimidazolium surfactant, which preferred β-type Mo₈ isomer. The less bulky hydrophilic moiety of the 1-dodecylimidazolium interacted with the δ-Mo₈ anion by N-H···O hydrogen bonds, which presumably induced the formation of the δ-Mo₈ anion. Anhydrous conductivity of the hybrid crystal was estimated to be 5.5 × 10(-6) S·cm(-1) at 443 K by alternating current (AC) impedance spectroscopy.
authors.affiliation: Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan. j.koba92@gmail.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Kobayashi
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan. 9770832063@mail.ecc.u-tokyo.ac.jp.
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Kawahara
authors.affiliation: Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan. csayaka@mail.ecc.u-tokyo.ac.jp.
authors.forename: Sayaka
authors.initials: S
authors.lastname: Uchida
authors.affiliation: Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan. koguchi@tokai-u.jp.
authors.forename: Shinichi
authors.initials: S
authors.lastname: Koguchi
authors.affiliation: Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan. takeito@keyaki.cc.u-tokai.ac.jp.
authors.forename: Takeru
authors.initials: T
authors.lastname: Ito
mesh_terms: D004553:Electric Conductivity; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D008982:Molybdenum / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D007093:Imidazoles; D052578:Ionic Liquids; D013501:Surface-Active Agents; C044659:molybdate; D008982:Molybdenum
keywords: hybrid crystal; inorganic-organic; ionic-liquid; polyoxometalate; surfactant