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

Jason D. Pless, Hacksung Kim, Jared P. Smit, Xiandong Wang, Peter Stair*, Kenneth Poeppelmeier

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

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 (US)
Pages (from-to)514-520
Number of pages7
JournalInorganic Chemistry
Volume45
Issue number2
DOIs
StatePublished - Jan 23 2006

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'Structure of Mg<sub>2.56</sub>V<sub>1.12</sub>W<sub>0.88</sub>O<sub>8</sub> and vibrational raman spectra of Mg<sub>2.5</sub>VWO<sub>8</sub> and Mg <sub>2.5</sub>VMoO<sub>8</sub>'. Together they form a unique fingerprint.

Cite this