La3Cu2VO9: A surprising variation on the YA1O3 structure-type with 2D copper clusters of embedded triangles

Douglas A. Vander Griend; Sylvie Malo; Scott J. Barry; Noura M. Dabbousch; Kenneth R. Poeppelmeier; Vinayak P. Dravid

doi:10.1016/S1293-2558(01)01170-0

La₃Cu₂VO₉: A surprising variation on the YA1O₃ structure-type with 2D copper clusters of embedded triangles

Douglas A. Vander Griend, Sylvie Malo, Scott J. Barry, Noura M. Dabbousch, Kenneth R. Poeppelmeier^*, Vinayak P. Dravid

^*Corresponding author for this work

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

15 Scopus citations

Abstract

La₃Cu₂VO₉ crystallizes in a heretofore unknown superstructural variation of the rare-earth hexagonal structure (P6₃/mmc) for ABO₃ stoichiometries as characterized by X-ray, neutron and electron diffraction. The alternating hexagonal layers of LaO_6/3 and (Cu/V)O_3/3 resemble those of YA1O₃, except that the copper and vanadium order to create an a√13 × a√13 × c supercell with P6₃/m symmetry. The B-cation coordination environments accommodate copper and vanadium in a two to one molar ratio. The Cu^II lattice consists of nine atom clusters of triangles in triangles similar to a kagomé lattice. The phase is paramagnetic from 5 to 370 K with three temperature regimes that correspond closely to 1/9, 4/9, and 9/9 spins per copper.

Original language	English (US)
Pages (from-to)	569-579
Number of pages	11
Journal	Solid State Sciences
Volume	3
Issue number	5
DOIs	https://doi.org/10.1016/S1293-2558(01)01170-0
State	Published - Aug 8 2001

Keywords

Copper clusters
Hexagonal structure
Kagomé
LaCuVO

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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@article{1313de53f5f4440283b22808229f1efe,

title = "La3Cu2VO9: A surprising variation on the YA1O3 structure-type with 2D copper clusters of embedded triangles",

abstract = "La3Cu2VO9 crystallizes in a heretofore unknown superstructural variation of the rare-earth hexagonal structure (P63/mmc) for ABO3 stoichiometries as characterized by X-ray, neutron and electron diffraction. The alternating hexagonal layers of LaO6/3 and (Cu/V)O3/3 resemble those of YA1O3, except that the copper and vanadium order to create an a√13 × a√13 × c supercell with P63/m symmetry. The B-cation coordination environments accommodate copper and vanadium in a two to one molar ratio. The CuII lattice consists of nine atom clusters of triangles in triangles similar to a kagom{\'e} lattice. The phase is paramagnetic from 5 to 370 K with three temperature regimes that correspond closely to 1/9, 4/9, and 9/9 spins per copper.",

keywords = "Copper clusters, Hexagonal structure, Kagom{\'e}, LaCuVO",

author = "{Vander Griend}, {Douglas A.} and Sylvie Malo and Barry, {Scott J.} and Dabbousch, {Noura M.} and Poeppelmeier, {Kenneth R.} and Dravid, {Vinayak P.}",

year = "2001",

month = aug,

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doi = "10.1016/S1293-2558(01)01170-0",

language = "English (US)",

volume = "3",

pages = "569--579",

journal = "Solid State Sciences",

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publisher = "Elsevier Masson SAS",

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T2 - A surprising variation on the YA1O3 structure-type with 2D copper clusters of embedded triangles

AU - Vander Griend, Douglas A.

AU - Malo, Sylvie

AU - Barry, Scott J.

AU - Dabbousch, Noura M.

AU - Poeppelmeier, Kenneth R.

AU - Dravid, Vinayak P.

PY - 2001/8/8

Y1 - 2001/8/8

N2 - La3Cu2VO9 crystallizes in a heretofore unknown superstructural variation of the rare-earth hexagonal structure (P63/mmc) for ABO3 stoichiometries as characterized by X-ray, neutron and electron diffraction. The alternating hexagonal layers of LaO6/3 and (Cu/V)O3/3 resemble those of YA1O3, except that the copper and vanadium order to create an a√13 × a√13 × c supercell with P63/m symmetry. The B-cation coordination environments accommodate copper and vanadium in a two to one molar ratio. The CuII lattice consists of nine atom clusters of triangles in triangles similar to a kagomé lattice. The phase is paramagnetic from 5 to 370 K with three temperature regimes that correspond closely to 1/9, 4/9, and 9/9 spins per copper.

AB - La3Cu2VO9 crystallizes in a heretofore unknown superstructural variation of the rare-earth hexagonal structure (P63/mmc) for ABO3 stoichiometries as characterized by X-ray, neutron and electron diffraction. The alternating hexagonal layers of LaO6/3 and (Cu/V)O3/3 resemble those of YA1O3, except that the copper and vanadium order to create an a√13 × a√13 × c supercell with P63/m symmetry. The B-cation coordination environments accommodate copper and vanadium in a two to one molar ratio. The CuII lattice consists of nine atom clusters of triangles in triangles similar to a kagomé lattice. The phase is paramagnetic from 5 to 370 K with three temperature regimes that correspond closely to 1/9, 4/9, and 9/9 spins per copper.

KW - Copper clusters

KW - Hexagonal structure

KW - Kagomé

KW - LaCuVO

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