Inter-cluster distance dependence of electrical properties in single crystals of a mixed-valence polyoxometalate

Ryo Tsunashima, Ippei Nakamura, Rika Oue, Seiya Koga, Hirofumi Oki, Shin Ichiro Noro, Takayoshi Nakamura, Tomoyuki Akutagawa

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The electrical conductivity of mixed-valence [MoV2MoVI16O54(SO3)2]6- tetraalkylammonium salts was investigated through dependence on the inter-cluster distance that is controlled by tetraethylammonium, tetrapropylammonium, and tetrabutylammonium cations. The crystallographic analysis of single crystals revealed that the inter-cluster distances are dependent on the chain length of the alkyl groups on the counter cations. In addition, the electrical conductivities of the single crystals were found to be dependent on both temperature and chain length. Mixed-valence polyoxometalate (POM) clusters are considered to be a molecular particle of Mo bronze by which highly ordered networks will be developed using single crystals, where POMs are rather small and have a well-organized structure compared to colloidal nanostructures.

    Original languageEnglish
    Pages (from-to)12619-12624
    Number of pages6
    JournalDalton Transactions
    Volume46
    Issue number37
    DOIs
    Publication statusPublished - 2017

    ASJC Scopus subject areas

    • Inorganic Chemistry

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