Temperature controlled formation of polar copper phosphonates showing large dielectric anisotropy and a dehydration-induced switch from ferromagnetic to antiferromagnetic interactions

Peng Fei Wang; Song Song Bao; Xin Da Huang; T. Akutagawa; Li Min Zheng

doi:10.1039/c8cc02819b

Temperature controlled formation of polar copper phosphonates showing large dielectric anisotropy and a dehydration-induced switch from ferromagnetic to antiferromagnetic interactions

Peng Fei Wang, Song Song Bao, Xin Da Huang, T. Akutagawa, Li Min Zheng

Polymer Hybrid Materials Research Center

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The reaction of copper(ii) chloride with 2-carboxyphenylphosphonic acid (2-cppH₃) under hydrothermal conditions at 100 °C results in the formation of a polar compound, Cu₃(2-cpp)₂(H₂O)₅ (1), which shows large dielectric anisotropy. A similar reaction at 140 °C results in a centrosymmetric phase, Cu₃(2-cpp)₂(H₂O)₂ (2). Compound 1 can convert into 2 upon increasing the reaction temperature under hydrothermal conditions, and further to Cu₃(2-cpp)₂ (3) upon thermal treatment at 240 °C. This process is accompanied by a switch from ferromagnetic in 1 to antiferromagnetic interactions in 2 and 3.

Original language	English
Pages (from-to)	6276-6279
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	49
DOIs	https://doi.org/10.1039/c8cc02819b
Publication status	Published - 2018

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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Wang, P. F., Bao, S. S., Huang, X. D., Akutagawa, T., & Zheng, L. M. (2018). Temperature controlled formation of polar copper phosphonates showing large dielectric anisotropy and a dehydration-induced switch from ferromagnetic to antiferromagnetic interactions. Chemical Communications, 54(49), 6276-6279. https://doi.org/10.1039/c8cc02819b

Temperature controlled formation of polar copper phosphonates showing large dielectric anisotropy and a dehydration-induced switch from ferromagnetic to antiferromagnetic interactions. / Wang, Peng Fei; Bao, Song Song; Huang, Xin Da; Akutagawa, T.; Zheng, Li Min.

In: Chemical Communications, Vol. 54, No. 49, 2018, p. 6276-6279.

Research output: Contribution to journal › Article

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abstract = "The reaction of copper(ii) chloride with 2-carboxyphenylphosphonic acid (2-cppH3) under hydrothermal conditions at 100 °C results in the formation of a polar compound, Cu3(2-cpp)2(H2O)5 (1), which shows large dielectric anisotropy. A similar reaction at 140 °C results in a centrosymmetric phase, Cu3(2-cpp)2(H2O)2 (2). Compound 1 can convert into 2 upon increasing the reaction temperature under hydrothermal conditions, and further to Cu3(2-cpp)2 (3) upon thermal treatment at 240 °C. This process is accompanied by a switch from ferromagnetic in 1 to antiferromagnetic interactions in 2 and 3.",

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AU - Wang, Peng Fei

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AU - Zheng, Li Min

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