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

doi:10.1021/ic051740h

Structure of Mg_2.56V_1.12W_0.88O₈ and vibrational raman spectra of Mg_2.5VWO₈ and Mg _2.5VMoO₈

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Mg_2.56V_1.12W_0.88O₈ 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 Mg_2.5VMoO₈. Raman spectra are reported, and the assignment of the Raman bands is made by comparing the metal-oxygen vibrations of VO₄/WO₄ tetrahedra in Mg_2.5VWOe with the metal-oxygen vibrations of VO₄/MoO ₄ tetrahedra in Mg_2.5VMoO₈. 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 language	English (US)
Pages (from-to)	514-520
Number of pages	7
Journal	Inorganic chemistry
Volume	45
Issue number	2
DOIs	https://doi.org/10.1021/ic051740h
State	Published - Jan 23 2006

ASJC Scopus subject areas

Inorganic Chemistry
Physical and Theoretical Chemistry

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@article{5939d219d34c4584827811ee1d461081,

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

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) {\AA}, b = 10.333(1) {\AA}, c = 17.421(2) {\AA}, 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.",

author = "Pless, {Jason D.} and Kim, {Hack Sung} and Smit, {Jared P.} and Xiandong Wang and Stair, {Peter C.} and Poeppelmeier, {Kenneth R.}",

year = "2006",

month = jan,

day = "23",

doi = "10.1021/ic051740h",

language = "English (US)",

volume = "45",

pages = "514--520",

journal = "Inorganic chemistry",

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publisher = "American Chemical Society",

number = "2",

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T1 - Structure of Mg2.56V1.12W0.88O8 and vibrational raman spectra of Mg2.5VWO8 and Mg 2.5VMoO8

AU - Pless, Jason D.

AU - Kim, Hack Sung

AU - Smit, Jared P.

AU - Wang, Xiandong

AU - Stair, Peter C.

AU - Poeppelmeier, Kenneth R.

PY - 2006/1/23

Y1 - 2006/1/23

N2 - 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.

AB - 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.

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ER -

Structure of Mg_2.56V_1.12W_0.88O₈ and vibrational raman spectra of Mg_2.5VWO₈ and Mg _2.5VMoO₈

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