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Pr(H3BNMe2BH3)3 and Pr(thd)3 as Volatile Carriers for Actinium-225. Deposition of Actinium-Doped Praseodymium Boride Thin Films for Potential Use in Brachytherapy
Journal article   Peer reviewed

Pr(H3BNMe2BH3)3 and Pr(thd)3 as Volatile Carriers for Actinium-225. Deposition of Actinium-Doped Praseodymium Boride Thin Films for Potential Use in Brachytherapy

Scott R. Daly, Brian J. Bellott, Daniel R. McAlister, E. Philip Horwitz and Gregory S. Girolami
Inorganic chemistry, Vol.61(19), pp.7217-7221
05/16/2022
DOI: 10.1021/acs.inorgchem.2c00442
PMID: 35510902
url
https://www.osti.gov/servlets/purl/1901915View
Open Access

Abstract

Here we show that the praseodymium N,N-dimethylaminodiboranate complex Pr­(H3BNMe2BH3)3 and the 2,2,6,6-tetramethylheptane-3,5-dionate complex Pr­(thd)3 can serve as volatile carriers for 225Ac. The actinium coordination complexes Ac­(H3BNMe2BH3)3 and Ac­(thd)3 are the likely species subliming with the carrier material. A sample of 225Ac-doped Pr­(H3BNMe2BH3)3 was used to deposit amorphous 225Ac-doped praseodymium boride films on glass and Si(100) at 300 °C. The α emission spectra of the refractory films are well-resolved, suggesting that they could be used as radioactive implants for brachytherapy and related treatments.

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