New Lead Orthosilicate {Pb4(О(ОН)2)}[SiO4] with a Framework of Anion-Centered Pb Tetrahedra Related to Sodalite
- 作者: Eremina T.A.1, Belokoneva E.L.1, Dimitrova O.V.1, Volkov A.S.1
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隶属关系:
- Moscow State University
- 期: 卷 64, 编号 3 (2019)
- 页面: 398-402
- 栏目: Structure of Inorganic Compounds
- URL: https://journals.rcsi.science/1063-7745/article/view/193918
- DOI: https://doi.org/10.1134/S1063774519030040
- ID: 193918
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详细
New lead silicate {Pb4(О(ОН)2)}[SiO4] was synthesized under hydrothermal conditions and structurally characterized, sp. gr. P213, а = 8.9756(13) Å. According to the commonly used classification, the new compound belongs to orthosilicates. In the crystal structure, isolated SiO4 tetrahedra are located between numerous Pb atoms. The structure can be considered as an anion-centered positively charged zeolite-like framework composed of {O3Pb7}8+ clusters, which are linked to each other and include three edge-sharing (OPb4)6+ tetrahedra with one common vertex. The formula of this positively charged antiframework is {O(ОН)2Pb4}4+, and its cavities are occupied by negatively charged [SiO4]4– tetrahedra. This framework is similar to that of sodalite when relating the sites to the centers of gravity of the {O3Pb7}8+ clusters.
作者简介
T. Eremina
Moscow State University
Email: elbel@geol.msu.ru
俄罗斯联邦, Moscow, 119992
E. Belokoneva
Moscow State University
编辑信件的主要联系方式.
Email: elbel@geol.msu.ru
俄罗斯联邦, Moscow, 119992
O. Dimitrova
Moscow State University
Email: elbel@geol.msu.ru
俄罗斯联邦, Moscow, 119992
A. Volkov
Moscow State University
Email: elbel@geol.msu.ru
俄罗斯联邦, Moscow, 119992
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