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Crystals 2012, 2(2), 362-373;

Polyoxotungstate-Surfactant Layered Crystal toward Conductive Inorganic-Organic Hybrid

Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan
Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259-R1-23, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Author to whom correspondence should be addressed.
Received: 12 February 2012 / Revised: 17 April 2012 / Accepted: 27 April 2012 / Published: 3 May 2012
(This article belongs to the Special Issue Molecular Conductors)
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A polyoxotungstate-surfactant hybrid layered compound was synthesized as a single phase by using decatungstate ([W10O32]4−, W10) and hexadecylpyridinium (C16py). The X-ray structure analysis combined with infrared spectroscopy and elemental analysis revealed the formula to be (C16py)4[W10O32] (C16py-W10). The layered structure consisted of alternative stacking of W10 inorganic monolayers and interdigitated C16py bilayers with layered periodicity of 23.3 Å. Each W10 anion in the W10 inorganic monolayers was isolated by the hydrophilic heads of C16py. The hybrid crystals of C16py-W10 decomposed at around 500 K. The conductivity of the hybrid layered crystal was estimated to be 4.8 × 10−6 S cm−1 at 423 K by alternating current (AC) impedance spectroscopy. View Full-Text
Keywords: inorganic-organic hybrid; layered crystal; polyoxometalate; surfactant inorganic-organic hybrid; layered crystal; polyoxometalate; surfactant

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Ito, T.; Fujimoto, N.; Uchida, S.; Iijima, J.; Naruke, H.; Mizuno, N. Polyoxotungstate-Surfactant Layered Crystal toward Conductive Inorganic-Organic Hybrid. Crystals 2012, 2, 362-373.

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