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2005
IR and Raman spectra
C 2530
Reactions of Laser-Ablated Uranium Atoms with H2O in Excess Argon: A Matrix
and Relativistic DFT Investigation of Uranium Oxyhydrides. —
24- 006 Infrared
Laser-ablated U atoms react with H2O during condensation in excess argon. IR absorptions at 1416.3, 1377.1, and 859.4 cm-1 are assigned to symmetric H—U—H, antisymmetric H—U—H, and U=O stretching vibrations of the primary reaction product
H2UO. UO, also formed in the reaction, inserts into H2O to produce HUO(OH), which
undergoes UV photoisomerization to a more stable H2UO2. The predicted vibrational
frequencies, relative absorption intensities, and isotopic shifts from relativistic DFT
calculations are in good agreement with observed spectra, which further supports the
matrix IR identification of the novel uranium oxyhydrides. — (LIANG, B.; HUNT, R.
D.; KUSHTO, G. P.; ANDREWS*, L.; LI, J.; BURSTEN, B. E.; Inorg. Chem. 44
(2005) 7, 2159-2168; Dep. Chem., Univ. Va., Charlottesville, VA 22904, USA; Eng.)
— Schramke
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