Structure of Mg2.56V1.12W0.88O8 and vibrational raman spectra of Mg2.5VWO8 and Mg 2.5VMoO8

Jason D. Pless, Hack Sung Kim, Jared P. Smit, Xiandong Wang, Peter C. Stair, Kenneth R. Poeppelmeier

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Mg2.56V1.12W0.88O8 crystals were grown from a MgO/V2O5/WO3 melt. X-ray single-crystal diffraction studies revealed that it is orthorhombic with space group Pnma, a = 5.0658(5) Å, b = 10.333(1) Å, c = 17.421(2) Å, Z = 6, and is isostructural with Mg2.5VMoO8. Raman spectra are reported, and the assignment of the Raman bands is made by comparing the metal-oxygen vibrations of VO4/WO4 tetrahedra in Mg2.5VWOe with the metal-oxygen vibrations of VO4/MoO 4 tetrahedra in Mg2.5VMoO8. The stretching vibrations appearing at 1016 and 1035 cm-1 are assigned to Mo=O and W=O double bonds, respectively, associated with the Mg2+ cation vacancies.

Original languageEnglish
Pages (from-to)514-520
Number of pages7
JournalInorganic Chemistry
Issue number2
Publication statusPublished - Jan 23 2006

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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