Synthesis
and Spectroscopic Properties
of Monoclinic α‑Eu2(MoO4)3

Atuchin, V. V.; Aleksandrovsky, A. S.; Chimitova, O. D.; Gavrilova, T. A.; Krylov, A. S.; Molokeev, M. S.; Oreshonkov, A. S.; Bazarov, B. G.; Bazarova, J. G.

doi:10.1021/jp5040739.s002

Synthesis and Spectroscopic Properties of Monoclinic α‑Eu₂(MoO₄)₃

journal contribution

posted on 2014-07-17, 00:00 authored by V. V. Atuchin, A. S. Aleksandrovsky, O. D. Chimitova, T. A. Gavrilova, A. S. Krylov, M. S. Molokeev, A. S. Oreshonkov, B. G. Bazarov, J. G. Bazarova

The microcrystals of monoclinic europium molybdate, α-Eu₂(MoO₄)₃, have been fabricated by solid-state synthesis at T = 753–1273 K for 300 h. The crystal structure of α-Eu₂(MoO₄)₃ has been refined by the Rietveld method and was found to belong to the space group C2/c with unit cell parameters a = 7.5576(1), b = 11.4709(2), c = 11.5158(2) Å, and β = 109.278(1)° (R_B = 3.39%). About 40 narrow Raman lines have been observed in the Raman spectrum of the α-Eu₂(MoO₄)₃ powder sample. The luminescence spectra of α-Eu₂(MoO₄)₃ under excitation at 355 and 457.9 nm reveal domination of induced electric dipole transition ⁵D₀ → ⁷F₂ and the presence of ultranarrow lines at ⁵D₀ → ⁷F₀ and ⁵D₁ → ⁷F₀ transitions.