Structure-Directing Lone Pairs: Synthesis and Structural Characterization of SnTiO3
| Autor: | Robert E. Dinnebier, Bettina V. Lotsch, Sophia B. Betzler, Florian Pielnhofer, Sebastian Bette, Leo Diehl, Igor L. Moudrakovski, Geoffrey A. Ozin |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Rietveld refinement General Chemical Engineering Stacking chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Soft chemistry 0104 chemical sciences Crystallography symbols.namesake chemistry Lattice (order) Materials Chemistry symbols van der Waals force 0210 nano-technology Tin Crystal twinning Lone pair |
| Zdroj: | Chemistry of Materials. 30:8932-8938 |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | SnTiO3 was successfully synthesized for the first time in bulk form by soft chemistry. STEM and Rietveld refinement show that SnTiO3 adopts a structure similar to the archetypical ilmenite-type structure, forming a honeycomb lattice of edge-sharing TiO6-octahedra, which are decorated with Sn2+. Given the formation of a van der Waals gap between the individual layers and hence close energetic minima of different stacking types, SnTiO3 forms multiple stacking orders and twinning domains that we describe by systematic DIFFaX-simulations. The structure is governed by the tin lone pairs, which influence the stacking of the layers as well as local distortions observed by EELS and NMR, potentially leading to a wide range of applications. |
| Databáze: | OpenAIRE |
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