摘要
An exploratory study of the lead-tellurium-oxygen phase space led to two new compounds, Ba3PbTe6O16(BPTO) and Na2Pb9(μ6-O)2(Te2O10)2(NPTO), which were synthesized under hydrothermal conditions at 550 °C and 210 °C, respectively, and characterized by single-crystal X-ray diffraction, infrared and X-ray photoelectron spectroscopy. BPTO adopts a layer structure. The Te4+cation in BPTO is bonded to four oxygen atoms at about 2.0 Å with two more oxygens at about 3.0 Å. The seesaw-shaped TeO4units share corners to form 2D layers containing six-membered rings and the Ba2+and Pb2+cations are situated in the interlayer region. The structure of NPTO contains dimers of edge-sharing Te6+O6octahedra, which are connected through five-coordinate Pb2+cations. A unique six-coordinate O atom is at the center of the octahedron formed by five Pb2+and one Na+cations. BPTO is one of the few metal tellurites which were synthesized under supercritical hydrothermal reaction conditions. The Pb2+cation in NPTO shows pronounced stereochemical effects of the lone electron pair. In contrast, BPTO shows no stereochemical evidence of the inert pair.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 8189-8195 |
頁數 | 7 |
期刊 | Dalton Transactions |
卷 | 50 |
發行號 | 23 |
DOIs | |
出版狀態 | 已出版 - 21 6月 2021 |
指紋
深入研究「Hydrothermal synthesis, crystal structures, and X-ray photoelectron spectroscopy of lead tellurium(iv) and tellurium(vi) oxycompounds: Ba3PbTe6O16and Na2Pb9(μ6-O)2(Te2O10)2」主題。共同形成了獨特的指紋。資料集
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CSD 2061400: Experimental Crystal Structure Determination
Li, H.-Y. (貢獻者) & Lii, K.-H. (貢獻者), FIZ Karlsruhe - Leibniz Institute for Information Infrastructure, 2021
DOI: 10.25505/fiz.icsd.cc2761s9, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.25505/fiz.icsd.cc2761s9&sid=DataCite
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CSD 2061401: Experimental Crystal Structure Determination
Li, H.-Y. (貢獻者) & Lii, K.-H. (貢獻者), FIZ Karlsruhe - Leibniz Institute for Information Infrastructure, 2021
DOI: 10.25505/fiz.icsd.cc2761tb, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.25505/fiz.icsd.cc2761tb&sid=DataCite
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