New tungsten pyrophosphate with cubic zirconium pyrophosphate-type structure

Z. S. Teweldemedhin; K. V. Ramanujachary; M. Greenblatt

doi:10.1016/0025-5408(93)90124-V

New tungsten pyrophosphate with cubic zirconium pyrophosphate-type structure

Z. S. Teweldemedhin, K. V. Ramanujachary, M. Greenblatt

Chemistry

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

9 Scopus citations

Abstract

Tungsten pyrophosphate, WP₂O₇, was prepared by reacting mixtures of (NH₄)₂HPO₄, WO₃ and W at 900 °C in an evacuated quartz tube. Powder X-ray diffraction study shows the compound to be isostructural with cubic zirconium pyrophosphate, ZrP₂O₇, with a = 7.947 (1) A ̊. The electrical resistivity of the compound at room temperature is in the Mega-Ohm region indicating insulating behavior. The magnetization study made on a pelletized sample shows a paramagnetic behavior similar to MoP₂O₇. The effective magnetic moment calculated in the temperature range 100-300 K is 2.4 BM.

Original language	English (US)
Pages (from-to)	427-434
Number of pages	8
Journal	Materials Research Bulletin
Volume	28
Issue number	5
DOIs	https://doi.org/10.1016/0025-5408(93)90124-V
State	Published - May 1993

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{c1d91eec323549dda7b26eb3ccaded0a,

title = "New tungsten pyrophosphate with cubic zirconium pyrophosphate-type structure",

abstract = "Tungsten pyrophosphate, WP2O7, was prepared by reacting mixtures of (NH4)2HPO4, WO3 and W at 900 °C in an evacuated quartz tube. Powder X-ray diffraction study shows the compound to be isostructural with cubic zirconium pyrophosphate, ZrP2O7, with a = 7.947 (1) A ̊. The electrical resistivity of the compound at room temperature is in the Mega-Ohm region indicating insulating behavior. The magnetization study made on a pelletized sample shows a paramagnetic behavior similar to MoP2O7. The effective magnetic moment calculated in the temperature range 100-300 K is 2.4 BM.",

author = "Teweldemedhin, {Z. S.} and Ramanujachary, {K. V.} and M. Greenblatt",

year = "1993",

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doi = "10.1016/0025-5408(93)90124-V",

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pages = "427--434",

journal = "Materials Research Bulletin",

issn = "0025-5408",

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T1 - New tungsten pyrophosphate with cubic zirconium pyrophosphate-type structure

AU - Teweldemedhin, Z. S.

AU - Ramanujachary, K. V.

AU - Greenblatt, M.

PY - 1993/5

Y1 - 1993/5

N2 - Tungsten pyrophosphate, WP2O7, was prepared by reacting mixtures of (NH4)2HPO4, WO3 and W at 900 °C in an evacuated quartz tube. Powder X-ray diffraction study shows the compound to be isostructural with cubic zirconium pyrophosphate, ZrP2O7, with a = 7.947 (1) A ̊. The electrical resistivity of the compound at room temperature is in the Mega-Ohm region indicating insulating behavior. The magnetization study made on a pelletized sample shows a paramagnetic behavior similar to MoP2O7. The effective magnetic moment calculated in the temperature range 100-300 K is 2.4 BM.

AB - Tungsten pyrophosphate, WP2O7, was prepared by reacting mixtures of (NH4)2HPO4, WO3 and W at 900 °C in an evacuated quartz tube. Powder X-ray diffraction study shows the compound to be isostructural with cubic zirconium pyrophosphate, ZrP2O7, with a = 7.947 (1) A ̊. The electrical resistivity of the compound at room temperature is in the Mega-Ohm region indicating insulating behavior. The magnetization study made on a pelletized sample shows a paramagnetic behavior similar to MoP2O7. The effective magnetic moment calculated in the temperature range 100-300 K is 2.4 BM.

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