Thorium amidates function as single-source molecular precursors for thorium dioxide
| Autor: | Matthew A. Marcus, A. L. David Kilcoyne, David K. Shuh, Trevor D. Lohrey, John Arnold, Erik T. Ouellette, Mark D. Straub, Jacob A. Branson, Stefan G. Minasian, Michael A. Boreen, Alex Ditter, José Ramirez, Maria Paley |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Thorium dioxide Alkene Inorganic chemistry Metals and Alloys Thorium chemistry.chemical_element General Chemistry Oxygen Catalysis Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Crystallinity chemistry Materials Chemistry Ceramics and Composites Thermal stability Homoleptic Pyrolysis |
| Zdroj: | Chemical Communications. 57:4954-4957 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/d1cc00867f |
| Popis: | We report the synthesis of four homoleptic thorium(iv) amidate complexes as single-source molecular precursors for thorium dioxide. Each can be sublimed at atmospheric pressure, with the substituents on the amidate ligands significantly impacting their volatility and thermal stability. These complexes decompose via alkene elimination to give ThO2 without need for a secondary oxygen source. ThO2 samples formed from pyrolysis of C-alkyl amidates were found to have higher purity and crystallinity than ThO2 samples formed from C-aryl amidates. |
| Databáze: | OpenAIRE |
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