Thorium amidates function as single-source molecular precursors for thorium dioxide.
作者信息
Straub Mark D, Ouellette Erik T, Boreen Michael A, Branson Jacob A, Ditter Alex, Kilcoyne A L David, Lohrey Trevor D, Marcus Matthew A, Paley Maria, Ramirez José, Shuh David K, Minasian Stefan G, Arnold John
机构信息
University of California, Berkeley, Berkeley, CA 94720, USA.
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
出版信息
Chem Commun (Camb). 2021 May 18;57(40):4954-4957. doi: 10.1039/d1cc00867f.
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.
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