A new oxychloride, Ba2CuO2Cl2, prepared under high pressure

T. Tatsuki; A. Tokiwa-Yamamoto; T. Tamura; Y. Moriwaki; X. J. Wu; S. Adachi; K. Tanabe

doi:10.1016/0921-4534(96)00332-2

A new oxychloride, Ba₂CuO₂Cl₂, prepared under high pressure

T. Tatsuki, A. Tokiwa-Yamamoto, T. Tamura, Y. Moriwaki, X. J. Wu, S. Adachi, K. Tanabe

Global course of Engineering and Science

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Abstract

We synthesized a new copper-oxychloride, Ba₂CuO₂Cl₂, from BaCl₂, BaO₂ and Cu-metal powders under a high pressure of 6 GPa at 1000°C. X-ray powder diffraction and TEM observation indicated that Ba₂CuO₂Cl₂ crystallizes in a tetragonal K₂NiF₄ structure with lattice parameters of a = 4.1026(3) Å and c = 16.442(1) Å. It was found from iodometric titration and SEM-EDX analysis that the average valence of the Cu ions is +1.8 and 10% chlorine is deficient.

Original language	English
Pages (from-to)	323-327
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	265
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(96)00332-2
Publication status	Published - 1996 Jul 10

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Cite this

Tatsuki, T., Tokiwa-Yamamoto, A., Tamura, T., Moriwaki, Y., Wu, X. J., Adachi, S., & Tanabe, K. (1996). A new oxychloride, Ba₂CuO₂Cl₂, prepared under high pressure. Physica C: Superconductivity and its applications, 265(3-4), 323-327. https://doi.org/10.1016/0921-4534(96)00332-2

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abstract = "We synthesized a new copper-oxychloride, Ba2CuO2Cl2, from BaCl2, BaO2 and Cu-metal powders under a high pressure of 6 GPa at 1000°C. X-ray powder diffraction and TEM observation indicated that Ba2CuO2Cl2 crystallizes in a tetragonal K2NiF4 structure with lattice parameters of a = 4.1026(3) {\AA} and c = 16.442(1) {\AA}. It was found from iodometric titration and SEM-EDX analysis that the average valence of the Cu ions is +1.8 and 10% chlorine is deficient.",

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T1 - A new oxychloride, Ba2CuO2Cl2, prepared under high pressure

AU - Tatsuki, T.

AU - Tokiwa-Yamamoto, A.

AU - Tamura, T.

AU - Moriwaki, Y.

AU - Wu, X. J.

AU - Adachi, S.

AU - Tanabe, K.

PY - 1996/7/10

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AB - We synthesized a new copper-oxychloride, Ba2CuO2Cl2, from BaCl2, BaO2 and Cu-metal powders under a high pressure of 6 GPa at 1000°C. X-ray powder diffraction and TEM observation indicated that Ba2CuO2Cl2 crystallizes in a tetragonal K2NiF4 structure with lattice parameters of a = 4.1026(3) Å and c = 16.442(1) Å. It was found from iodometric titration and SEM-EDX analysis that the average valence of the Cu ions is +1.8 and 10% chlorine is deficient.

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10.1016/0921-4534(96)00332-2