Sr21Bi8Cu2(CO3)2O41, a Bi5+ Oxycarbonate with an Original 10L Structure

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• 作者：Sylvie Malo ; Artem M. Abakumov ; Marco Daturi ; Denis Pelloquin ; Gustaaf Van Tendeloo ; Anne Guesdon ; Maryvonne Hervieu
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：October 6, 2014
• 年：2014
• 卷：53
• 期：19
• 页码：10266-10275
• 全文大小：782K
• ISSN：1520-510X

文摘

The layered structure of Sr₂₁Bi₈Cu₂(CO₃)₂O₄₁ (Z = 2) was determined by transmission electron microscopy, infrared spectroscopy, and powder X-ray diffraction refinement in space group P6₃/mcm (No. 194), with a = 10.0966(3)脜 and c = 26.3762(5)脜. This original 10L-type structure is built from two structural blocks, namely, [Sr₁₅Bi₆Cu₂(CO₃)O₂₉] and [Sr₆Bi₂(CO₃)O₁₂]. The Bi⁵⁺ cations form [Bi₂O₁₀] dimers, whereas the Cu²⁺ and C atoms occupy infinite tunnels running along c鈨?/i>. The nature of the different blocks and layers is discussed with regard to the existing hexagonal layered compounds. Sr₂₁Bi₈Cu₂(CO₃)₂O₄₁ is insulating and paramagnetic.