Journal
POLYHEDRON
Volume 116, Issue -, Pages 116-121Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2016.03.045
Keywords
Samarium(III) chloride; X-ray powder diffraction; Synchrotron beam irradiation; Carbon nanotubes; Electron microscopy
Categories
Funding
- European Union [290023]
- Spanish Ministry of Economy and Competitiveness [SEV- 2015-0496, SEV-2013-0295]
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Samarium is a rare-earth metal with several applications in materials science. It is used in organic chemistry as a reducing agent and it is the active payload in samarium-153 lexidronam, a drug being used for palliative treatment of bone metastases. Recently, the encapsulation of samarium compounds into the cavities of carbon nanotubes has attracted interest for the development of the next generation of radio pharmaceuticals. In the present study, we explore different routes to afford the encapsulation of samarium based materials into single-walled carbon nanotubes. Anhydrous samarium(III) chloride, despite being highly hygroscopic, raises as an excellent candidate to achieve a high filling efficiency. We provide a protocol that allows the synthesis of anhydrous samarium(III) chloride starting from samarium(III) oxide in a fast and simple manner. Synchrotron X-ray powder diffraction confirmed the crystallinity and purity of the synthesized SmCl3. (C) 2016 Elsevier Ltd. All rights reserved.
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