Cooperative Effects of Cation Size and Variable Coordination Modes of Te4+ on the Frameworks of New Alkali Metal Indium Tellurites, NaIn(TeO3)(2), KIn(TeO3)(2), RbInTe3O8, and CsInTe3O8
- Authors
- Bae, Su-whan; Kim, Choong-Yeol; Lee, Dong Woo; Ok, Kang Min
- Issue Date
- Oct-2014
- Publisher
- AMER CHEMICAL SOC
- Citation
- INORGANIC CHEMISTRY, v.53, no.20, pp 11328 - 11334
- Pages
- 7
- Journal Title
- INORGANIC CHEMISTRY
- Volume
- 53
- Number
- 20
- Start Page
- 11328
- End Page
- 11334
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/11708
- DOI
- 10.1021/ic502108a
- ISSN
- 0020-1669
1520-510X
- Abstract
- Four new alkali metal indium tellurites, NaIn(TeO3)(2), KIn(TeO3)(2), RbInTe3O8, and CsInTe3O8, have been prepared through hydrothermal and solid state synthesis reactions using corresponding alkali metal carbonates, In2O3 [or In(NO3)(3)center dot xH(2)O], and TeO2. The structures of the reported materials have been determined by powder and single crystal X-ray diffraction. The mixed indium tellurites reveal a rich structural chemistry with different channel structures. NaIn(TeO3)(2) shows 8-membered rings, whereas stoichiometrically similar KIn(TeO3)(2) exhibits both 8- and 12-membered rings in the frameworks. Isostructural RbInTe3O8 and CsInTe3O8 reveal three-dimensional frameworks consisting of InO6, TeO3, and TeO4 groups. Close structural examination suggests that the alkali metal cation size and variable coordination modes of Te4+ cations cooperatively influence the framework geometries of the new mixed metal tellurites. Detailed characterizations including spectroscopic, elemental, and thermal analyses are introduced. Local dipole moments and out-of-center distortions for the constituent polyhedra are also reported.
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