Thorium amidates function as single-source molecular precursors for thorium dioxide.
铀
放射化学
作者
Mark D. Straub,Erik T. Ouellette,Michael A. Boreen,Jacob A. Branson,Alex Ditter,A. L. David Kilcoyne,Trevor D. Lohrey,Matthew A. Marcus,Maria Paley,José Ramirez,David K. Shuh,Stefan G. Minasian,John Arnold
出处
期刊:Chemical Communications [The Royal Society of Chemistry] 日期:2021-05-19卷期号:57 (40): 4954-4957被引量:1
标识
DOI:10.1039/d1cc00867f
摘要
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.