Abstract

The Raman scattering of U(VI), Np(VI), Pu(VI), Am(VI), and Np(V), Am(V) in HClO₄ solutions and Np(VII) in a NaOH medium is reported. Direct observation of the polarized <i>v</i>₁ vibration (D_∞h symmetry) is observed for the transuranium MO₂ⁿ⁺ ions in the V and VI oxidation states. The spectroscopic evidence is consistent with a linear MO₂ⁿ⁺ structure for the Np(VII) ion in basic solutions. The trend of the <i>v</i>₁ frequency and the MO stretching force constants with the oxidation is discussed and is correlated with the bond strengths and the stability of the MO₂ⁿ⁺ ions.

Energy Levels of Zr v, vi, vii, Nb vi, vii, viii, and Mo vii, viii, ix

Mirza Said-Uz-Zafar Chaghtai
J. Opt. Soc. Am. 59(8) 969-970 (1969)

Spectra of Rb ii, Sr iii, Y iv, Zr v, Nb vi, and Mo vii in the Vacuum Ultraviolet

Joseph Reader, Gabriel L. Epstein, and Jan Olof Ekberg
J. Opt. Soc. Am. 62(2) 273-284 (1972)

Spectra of N vi, O vii, F vii, and F viii in the grazing-incidence region

A. M. Cantú, E. Jannitti, and G. Tondello
J. Opt. Soc. Am. 64(5) 699-701 (1974)

Ground-state term intervals in multiply ionized zinc (Zn v, Zn vi) and gallium (Ga v, Ga vi, Ga vii)

K. A. Dick
J. Opt. Soc. Am. 64(5) 702-705 (1974)

Studies of the collision-based Xe vi and Xe vii spectra

M. Wang, A. Arnesen, R. Hallin, F. Heijkenskjöld, M. O. Larsson, A. Wännström, A. G. Trigueiros, and A. V. Loginov
J. Opt. Soc. Am. B 14(12) 3277-3281 (1997)