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Author Hunt, R. D. ♦ Thompson, C. ♦ Andrews, L.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY ♦ CHLORINE ♦ CHEMICAL REACTIONS ♦ FLUORINE ♦ URANIUM CHLORIDES ♦ URANIUM FLUORIDES ♦ ABSORPTION SPECTROSCOPY ♦ MATRIX ISOLATION ♦ VIBRATIONAL STATES ♦ ACTINIDE COMPOUNDS ♦ CHLORIDES ♦ CHLORINE COMPOUNDS ♦ ELEMENTS ♦ ENERGY LEVELS ♦ EXCITED STATES ♦ FLUORIDES ♦ FLUORINE COMPOUNDS ♦ HALIDES ♦ HALOGEN COMPOUNDS ♦ HALOGENS ♦ NONMETALS ♦ SPECTROSCOPY ♦ URANIUM COMPOUNDS ♦ Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
Abstract Pulsed Nd:YAG laser ablated uranium atoms were codeposited with F[sub 2] and excess Ar onto a CsI window at 12 K. Infrared spectra revealed the presence of several uranium fluorides including the previously characterized UF[sub 4], UF[sub 5], and UF[sub 6]. Lower laser energy favored new absorptions at 400, 446, 496, and 561 cm[sup [minus]1]. These product absorptions increased stepwise during annealings which permitted diffusion and reaction of the fluorine. Similar studies with ClF produced the above absorptions plus a new band at 554 cm[sup [minus]1] which is tentatively assigned to ClF[sub 2][sup [minus]]. The first bands appearing at 400 and 446 cm[sup [minus]1] are assigned to UF and UF[sub 2], respectively. The 496- and 561-cm[sup [minus]1] bands are tentatively assigned to UF[sub 3] and F[sub 3][sup [minus]], respectively. Finally, uranium atoms were reacted with Cl[sub 2]. In addition to several absorptions due to UCl[sub 4], a new doublet at 312 and 308 cm[sup [minus]1] is assigned to UCl[sub 2].
ISSN 00201669
Educational Use Research
Learning Resource Type Article
Publisher Date 1994-01-19
Publisher Place United States
Journal Inorganic Chemistry
Volume Number 33
Issue Number 2


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