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

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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.

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

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Publication details

The article was received on 19 Jul 2017, accepted on 30 Aug 2017 and first published on 31 Aug 2017


Article type: Paper
DOI: 10.1039/C7DT02623D
Citation: Dalton Trans., 2017, Advance Article
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    Inter-cluster distance dependence of electrical properties in single crystals of a mixed-valence polyoxometalate

    R. Tsunashima, I. Nakamura, R. Oue, S. Koga, H. Oki, S. Noro, T. Nakamura and T. Akutagawa, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT02623D

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