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Crystals 2012, 2(2), 362-373; doi:10.3390/cryst2020362

Polyoxotungstate-Surfactant Layered Crystal toward Conductive Inorganic-Organic Hybrid

1,* , 1
1 Department of Chemistry, School of Science, Tokai University, 4-1-1 Kitakaname, Hiratsuka 259-1292, Japan 2 Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan 3 Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan 4 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.
Keywords: inorganic-organic hybrid; layered crystal; polyoxometalate; surfactant inorganic-organic hybrid; layered crystal; polyoxometalate; surfactant
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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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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