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Thorium amidates function as single-source molecular precursors for thorium dioxide

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Abstract

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.

Graphical abstract: Thorium amidates function as single-source molecular precursors for thorium dioxide

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Article information


Submitted
15 Feb 2021
Accepted
07 Apr 2021
First published
20 Apr 2021

Chem. Commun., 2021, Advance Article
Article type
Communication

Thorium amidates function as single-source molecular precursors for thorium dioxide

M. D. Straub, E. T. Ouellette, M. A. Boreen, J. A. Branson, A. Ditter, A. L. D. Kilcoyne, T. D. Lohrey, M. A. Marcus, M. Paley, J. Ramirez, D. K. Shuh, S. G. Minasian and J. Arnold, Chem. Commun., 2021, Advance Article , DOI: 10.1039/D1CC00867F

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