Preparation of uranium(III) triflate in tetrahydrofuran by reduction of U(OTf)4 with zinc amalgam

Tomoo Yamamura; Kenji Shirasaki; Yoshinobu Shiokawa

doi:10.1143/jpsjs.75s.149

Preparation of uranium(III) triflate in tetrahydrofuran by reduction of U(OTf)₄ with zinc amalgam

Tomoo Yamamura, Kenji Shirasaki, Yoshinobu Shiokawa

International Research Center for Nuclear Materials Science

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In order to develop an alternative preparation method of uranium(III) precursors soluble in aprotic organic solvent used for the preparation of uranium(III) compounds, U(IV) triflate, U(OTf)₄, in tetrahydrofuran (THF) was reduced to produce uranium(III) triflate. U(OTf)₄ in THF was completely reduced by large excess of zinc within 25 minutes. Energies and molar coefficients of the absorption bands of U(III) triflate are close to those of U(III) in 1M HCl aqueous solution especially in the range of (9 ∼ 14)×10³ cm^-1. U(III) triflate solution maintains its oxidation state in THF is when it is contacted with zinc amalgam for more than a week.

Original language	English
Pages (from-to)	149-151
Number of pages	3
Journal	journal of the physical society of japan
Volume	75
Issue number	SUPPL.
DOIs	https://doi.org/10.1143/jpsjs.75s.149
Publication status	Published - 2006

Keywords

Precursor
Preparation of trivalent uranium
Reduction by zinc amalgam
Tetrahydrofuran
Triflate

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/jpsjs.75s.149

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title = "Preparation of uranium(III) triflate in tetrahydrofuran by reduction of U(OTf)4 with zinc amalgam",

abstract = "In order to develop an alternative preparation method of uranium(III) precursors soluble in aprotic organic solvent used for the preparation of uranium(III) compounds, U(IV) triflate, U(OTf)4, in tetrahydrofuran (THF) was reduced to produce uranium(III) triflate. U(OTf)4 in THF was completely reduced by large excess of zinc within 25 minutes. Energies and molar coefficients of the absorption bands of U(III) triflate are close to those of U(III) in 1M HCl aqueous solution especially in the range of (9 ∼ 14)×103 cm-1. U(III) triflate solution maintains its oxidation state in THF is when it is contacted with zinc amalgam for more than a week.",

keywords = "Precursor, Preparation of trivalent uranium, Reduction by zinc amalgam, Tetrahydrofuran, Triflate",

author = "Tomoo Yamamura and Kenji Shirasaki and Yoshinobu Shiokawa",

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AU - Yamamura, Tomoo

AU - Shirasaki, Kenji

AU - Shiokawa, Yoshinobu

PY - 2006

Y1 - 2006

N2 - In order to develop an alternative preparation method of uranium(III) precursors soluble in aprotic organic solvent used for the preparation of uranium(III) compounds, U(IV) triflate, U(OTf)4, in tetrahydrofuran (THF) was reduced to produce uranium(III) triflate. U(OTf)4 in THF was completely reduced by large excess of zinc within 25 minutes. Energies and molar coefficients of the absorption bands of U(III) triflate are close to those of U(III) in 1M HCl aqueous solution especially in the range of (9 ∼ 14)×103 cm-1. U(III) triflate solution maintains its oxidation state in THF is when it is contacted with zinc amalgam for more than a week.

AB - In order to develop an alternative preparation method of uranium(III) precursors soluble in aprotic organic solvent used for the preparation of uranium(III) compounds, U(IV) triflate, U(OTf)4, in tetrahydrofuran (THF) was reduced to produce uranium(III) triflate. U(OTf)4 in THF was completely reduced by large excess of zinc within 25 minutes. Energies and molar coefficients of the absorption bands of U(III) triflate are close to those of U(III) in 1M HCl aqueous solution especially in the range of (9 ∼ 14)×103 cm-1. U(III) triflate solution maintains its oxidation state in THF is when it is contacted with zinc amalgam for more than a week.

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