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

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

8 Citations (Scopus)

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
Externally published	Yes

ASJC Scopus subject areas

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

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title = "A new oxychloride, Ba2CuO2Cl2, prepared under high pressure",

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.",

author = "T. Tatsuki and A. Tokiwa-Yamamoto and T. Tamura and Y. Moriwaki and Wu, {X. J.} and S. Adachi and K. Tanabe",

year = "1996",

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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

Y1 - 1996/7/10

N2 - 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.

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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JO - Physica C: Superconductivity and its Applications

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