Matrix Infrared Study on the Fluorination and Chlorination of UC14

R. D. Hunt; L. Andrews; L. M. Toth

doi:10.1524/ract.1993.60.1.17

Matrix Infrared Study on the Fluorination and Chlorination of UC1₄

R. D. Hunt, L. Andrews, L. M. Toth

Fuel Cycle Chemical Technology

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

7 Scopus citations

Abstract

Uranium tetrachloride was condensed with fluorine in excess argon at 12 +1 K, and an absorption due to UC1₄F was observed at 588.3 cm^-1. Photolysis produced primarily trans-UCl₄F₂ which has infrared bands at 621.4 and 350.8 cm^-1. Sample an-nealing, which facilitated F atom addition to UC1₄ and UC1₄>F, dramatically increased the 613.6, 579.2, and 359.3 cm^-1 absorptions due to cis-UCl₄F₂. In contrast, no reaction was detected when UC1₄and chlorine were codeposited; however, photolysis produced a 358.2 cm^-1 band which is assigned to UC1₆. UC1₅ was generated by reacting UC1₄ with Cl atoms during deposition and identified by an absorption at 351.9 cm^-1.

Original language	English
Pages (from-to)	17-20
Number of pages	4
Journal	Radiochimica Acta
Volume	60
Issue number	1
DOIs	https://doi.org/10.1524/ract.1993.60.1.17
State	Published - Jan 1993

Funding

This research was sponsored by the Division of Chemical Sciences, U.S. Department of Energy, under Contract DE-AC05-840R21400 with the Martin Marietta Energy Systems, Inc.

Funders	Funder number
Division of Chemical Sciences
U.S. Department of Energy	DE-AC05-840R21400

Keywords

Chlorination
Fluorination
Matrix infrared
UC14
spectroscopy

Access to Document

10.1524/ract.1993.60.1.17

Cite this

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title = "Matrix Infrared Study on the Fluorination and Chlorination of UC14",

abstract = "Uranium tetrachloride was condensed with fluorine in excess argon at 12 +1 K, and an absorption due to UC14F was observed at 588.3 cm-1. Photolysis produced primarily trans-UCl4F2 which has infrared bands at 621.4 and 350.8 cm-1. Sample an-nealing, which facilitated F atom addition to UC14 and UC14>F, dramatically increased the 613.6, 579.2, and 359.3 cm-1 absorptions due to cis-UCl4F2. In contrast, no reaction was detected when UC14and chlorine were codeposited; however, photolysis produced a 358.2 cm-1 band which is assigned to UC16. UC15 was generated by reacting UC14 with Cl atoms during deposition and identified by an absorption at 351.9 cm-1.",

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AU - Hunt, R. D.

AU - Andrews, L.

AU - Toth, L. M.

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N2 - Uranium tetrachloride was condensed with fluorine in excess argon at 12 +1 K, and an absorption due to UC14F was observed at 588.3 cm-1. Photolysis produced primarily trans-UCl4F2 which has infrared bands at 621.4 and 350.8 cm-1. Sample an-nealing, which facilitated F atom addition to UC14 and UC14>F, dramatically increased the 613.6, 579.2, and 359.3 cm-1 absorptions due to cis-UCl4F2. In contrast, no reaction was detected when UC14and chlorine were codeposited; however, photolysis produced a 358.2 cm-1 band which is assigned to UC16. UC15 was generated by reacting UC14 with Cl atoms during deposition and identified by an absorption at 351.9 cm-1.

AB - Uranium tetrachloride was condensed with fluorine in excess argon at 12 +1 K, and an absorption due to UC14F was observed at 588.3 cm-1. Photolysis produced primarily trans-UCl4F2 which has infrared bands at 621.4 and 350.8 cm-1. Sample an-nealing, which facilitated F atom addition to UC14 and UC14>F, dramatically increased the 613.6, 579.2, and 359.3 cm-1 absorptions due to cis-UCl4F2. In contrast, no reaction was detected when UC14and chlorine were codeposited; however, photolysis produced a 358.2 cm-1 band which is assigned to UC16. UC15 was generated by reacting UC14 with Cl atoms during deposition and identified by an absorption at 351.9 cm-1.

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