NDLI: Liquid luminophores POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ -Nd$^{3+}$

Content Provider	Springer Nature Link
Author	Kiselev, S. V. Tikhov, G. V.
Copyright Year	2006
Abstract	Samples of liquid luminophores POCl$_{3}$-SiCl$_{4}$-Nd$^{3+}$, POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ , and POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ Nd$^{3+}$ were prepared for the first time. The physicochemical properties and absorption spectra of the samples were compared. The solubility of Nd and U(VI) compounds in the POCl$_{3}$ SiCl$_{4}$ binary solvent was examined. The Nd$^{3+}$ concentration attains a maximum of 0.3 mM when Nd and U(VI) trifluoroacetates are jointly dissolved at the [POCl$_{3}$]/[SiCl$_{4}$] molar ratio of 6 8. The shapes of the absorption band of the Nd ions at 860–900 nm, corresponding to the $^{4}$ I $_{9/2}$ → $^{4}$ F $_{3/2}$ electronic transition, differ significantly in POCl$_{3}$-SiCl$_{4}$-Nd$^{3+}$ and POCl$_{3}$-SnCl$_{4}$-Nd$^{3+}$ solutions, and in POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ -Nd$^{3+}$ solutions the band shape also depends on the type of the Nd and U(VI) compounds introduced. The near-IR region of the absorption spectra of POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ and POCl$_{3}$-SiCl$_{4}$-$^{235}$UO 2 2+ -Nd$^{3+}$ solutions contains absorption bands of the OH groups. The band intensity is analyzed in relation to the characteristics of the solutions. The Nd$^{3+}$ luminescence lifetime τ in the luminophores synthesized was estimated at 70–20 μs.
Ending Page	266
Page Count	6
Starting Page	261
File Format	PDF
ISSN	10663622
e-ISSN	16083288
Journal	Radiochemistry
Issue Number	3
Volume Number	48
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2006-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemistry/Food Science Nuclear Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry

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