Crystal Structure, Phase Transition and Dielectric Behaviors of One‐dimensional Organic‐inorganic Bromoargentate Hybrids of [Et‐dabco]2Ag2Br4 DOI

Xue−Wei Pan,

Hongyu Ma, Zhengfang Tian

et al.

European Journal of Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 27(33)

Published: Oct. 29, 2024

Abstract A new haloargentate hybrid, [Et‐dabco]₂Ag₂Br₄ ( 1 ) (Et‐dabco + =1‐Ethyl‐1,4‐diazabicyclo[2.2.2]octan‐1‐ium), has been successfully synthesized by a solution diffusion method and characterized using microanalysis, single crystal X‐ray diffraction, variable‐temperature powder diffraction (PXRD), differential scanning calorimetry (DSC), dielectric spectra. The structure of at 273 K contains one‐dimensional (1D) anionic [Ag₂Br₄] 2− chains, with the [Et‐dabco] cations embedded in gaps between inorganic chains. Hybrid underwent reversible structural phase transition (SPT) around 464.5 on heating, Pawley refinement revealed similar structures low‐ high‐temperature phases. SPT endows switchable bistable properties. Combined previous studies, it was that self‐assembly silver halide (AgX) lower rotational energy barrier 1‐alkyl‐1,4‐diazabicyclo[2.2.2]octan‐1‐ium probably achieves materials.

Language: Английский

Crystal Structure, Phase Transition and Dielectric Behaviors of One‐dimensional Organic‐inorganic Bromoargentate Hybrids of [Et‐dabco]2Ag2Br4 DOI

Xue−Wei Pan,

Hongyu Ma, Zhengfang Tian

et al.

European Journal of Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 27(33)

Published: Oct. 29, 2024

Abstract A new haloargentate hybrid, [Et‐dabco]₂Ag₂Br₄ ( 1 ) (Et‐dabco + =1‐Ethyl‐1,4‐diazabicyclo[2.2.2]octan‐1‐ium), has been successfully synthesized by a solution diffusion method and characterized using microanalysis, single crystal X‐ray diffraction, variable‐temperature powder diffraction (PXRD), differential scanning calorimetry (DSC), dielectric spectra. The structure of at 273 K contains one‐dimensional (1D) anionic [Ag₂Br₄] 2− chains, with the [Et‐dabco] cations embedded in gaps between inorganic chains. Hybrid underwent reversible structural phase transition (SPT) around 464.5 on heating, Pawley refinement revealed similar structures low‐ high‐temperature phases. SPT endows switchable bistable properties. Combined previous studies, it was that self‐assembly silver halide (AgX) lower rotational energy barrier 1‐alkyl‐1,4‐diazabicyclo[2.2.2]octan‐1‐ium probably achieves materials.

Language: Английский

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