Improved synthesis and characterization of the copper Lyonsite-type compound Cu4-xMo3O12

Adam D. Raw; James A. Ibers; Kenneth R. Poeppelmeier

doi:10.1016/j.jssc.2013.01.017

Improved synthesis and characterization of the copper Lyonsite-type compound Cu_4-xMo₃O₁₂

Adam D. Raw, James A. Ibers, Kenneth R. Poeppelmeier

Northwestern University

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

2 Citations (Scopus)

Abstract

A novel method involving a molten Ga flux for the synthesis of diffraction quality crystals of the compound Cu_3.82(1)Mo₃O ₁₂, a copper molybdate in the Lyonsite (α-Cu₃Fe ₄(VO₄)₆) family, has been developed. Single-crystal X-ray diffraction data have been collected. Cu _3.82(1)Mo₃O₁₂ crystallizes in the space group P2₁2₁2₁ with cell dimensions of a=4.9972(1) Å, b=11.0259(3) Å, and c=17.4912(5) Å. Refinement of the resulting structure has enabled modeling of disorder in the channels of the structure and has indicated the localization of copper vacancies to these channel positions. Thermopower measurements indicate that Cu _3.82(1)Mo₃O₁₂ is a rare and interesting example of a cation-deficient n-type material.

Original language	English
Pages (from-to)	165-169
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	200
DOIs	https://doi.org/10.1016/j.jssc.2013.01.017
Publication status	Published - Apr 1 2013

Keywords

Copper molybdate
Ga flux synthesis
Lyonsite
Thermopower measurements
X-ray crystal structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "Improved synthesis and characterization of the copper Lyonsite-type compound Cu4-xMo3O12",

abstract = "A novel method involving a molten Ga flux for the synthesis of diffraction quality crystals of the compound Cu3.82(1)Mo3O 12, a copper molybdate in the Lyonsite (α-Cu3Fe 4(VO4)6) family, has been developed. Single-crystal X-ray diffraction data have been collected. Cu 3.82(1)Mo3O12 crystallizes in the space group P212121 with cell dimensions of a=4.9972(1) {\AA}, b=11.0259(3) {\AA}, and c=17.4912(5) {\AA}. Refinement of the resulting structure has enabled modeling of disorder in the channels of the structure and has indicated the localization of copper vacancies to these channel positions. Thermopower measurements indicate that Cu 3.82(1)Mo3O12 is a rare and interesting example of a cation-deficient n-type material.",

keywords = "Copper molybdate, Ga flux synthesis, Lyonsite, Thermopower measurements, X-ray crystal structure",

author = "Raw, {Adam D.} and Ibers, {James A.} and Poeppelmeier, {Kenneth R.}",

year = "2013",

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doi = "10.1016/j.jssc.2013.01.017",

language = "English",

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journal = "Journal of Solid State Chemistry",

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TY - JOUR

T1 - Improved synthesis and characterization of the copper Lyonsite-type compound Cu4-xMo3O12

AU - Raw, Adam D.

AU - Ibers, James A.

AU - Poeppelmeier, Kenneth R.

PY - 2013/4/1

Y1 - 2013/4/1

N2 - A novel method involving a molten Ga flux for the synthesis of diffraction quality crystals of the compound Cu3.82(1)Mo3O 12, a copper molybdate in the Lyonsite (α-Cu3Fe 4(VO4)6) family, has been developed. Single-crystal X-ray diffraction data have been collected. Cu 3.82(1)Mo3O12 crystallizes in the space group P212121 with cell dimensions of a=4.9972(1) Å, b=11.0259(3) Å, and c=17.4912(5) Å. Refinement of the resulting structure has enabled modeling of disorder in the channels of the structure and has indicated the localization of copper vacancies to these channel positions. Thermopower measurements indicate that Cu 3.82(1)Mo3O12 is a rare and interesting example of a cation-deficient n-type material.

AB - A novel method involving a molten Ga flux for the synthesis of diffraction quality crystals of the compound Cu3.82(1)Mo3O 12, a copper molybdate in the Lyonsite (α-Cu3Fe 4(VO4)6) family, has been developed. Single-crystal X-ray diffraction data have been collected. Cu 3.82(1)Mo3O12 crystallizes in the space group P212121 with cell dimensions of a=4.9972(1) Å, b=11.0259(3) Å, and c=17.4912(5) Å. Refinement of the resulting structure has enabled modeling of disorder in the channels of the structure and has indicated the localization of copper vacancies to these channel positions. Thermopower measurements indicate that Cu 3.82(1)Mo3O12 is a rare and interesting example of a cation-deficient n-type material.

KW - Copper molybdate

KW - Ga flux synthesis

KW - Lyonsite

KW - Thermopower measurements

KW - X-ray crystal structure

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