New Lead Orthosilicate {Pb4(О(ОН)2)}[SiO4] with a Framework of Anion-Centered Pb Tetrahedra Related to Sodalite


如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅存取

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

补充文件

附件文件
动作
1. JATS XML

版权所有 © Pleiades Publishing, Inc., 2019