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 journalArticle

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

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vibrational spectra
Raman scattering
Metals
Raman spectra
Oxygen
tetrahedrons
vibration
Stretching
Vacancies
Cations
Diffraction
Single crystals
oxygen
X rays
metals
Crystals
cations
single crystals
diffraction
crystals

ASJC Scopus subject areas

  • Inorganic Chemistry

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Structure of Mg2.56V1.12W0.88O8 and vibrational raman spectra of Mg2.5VWO8 and Mg 2.5VMoO8. / Pless, Jason D.; Kim, Hack Sung; Smit, Jared P.; Wang, Xiandong; Stair, Peter C; Poeppelmeier, Kenneth R.

In: Inorganic Chemistry, Vol. 45, No. 2, 23.01.2006, p. 514-520.

Research output: Contribution to journalArticle

Pless, Jason D. ; Kim, Hack Sung ; Smit, Jared P. ; Wang, Xiandong ; Stair, Peter C ; Poeppelmeier, Kenneth R. / Structure of Mg2.56V1.12W0.88O8 and vibrational raman spectra of Mg2.5VWO8 and Mg 2.5VMoO8. In: Inorganic Chemistry. 2006 ; Vol. 45, No. 2. pp. 514-520.
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AU - Smit, Jared P.

AU - Wang, Xiandong

AU - Stair, Peter C

AU - Poeppelmeier, Kenneth R

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