有机-无机杂化Q₂cuber4在室温下的铁电行为

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2025-09-30 DOI:10.1039/d5dt01668a

Agnieszka Cizman, Dorota A. Kowalska, Paweł Szarek, Wojciech Medycki, N. A. Wojcik, Marek A. Gusowski, Monika Trzebiatowska, Adam Bartosiewicz, Liudmyla Filevska, Piotr Staniorowski, Ewelina Jach

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引用次数: 0

摘要

成功地合成了一种自发极化Ps = 0.52 μC/cm²的喹核素基溴化铜分子铁电体。该化合物在Tc = 295k时发生有序-无序相变，与热诱导的喹啉离子旋转运动有关。这种转变导致介电常数和热性能的显著变化。利用实验数据和理论分析，讨论了有机和无机组分及其相互作用对观察到的电和热行为的贡献。

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Indications of Ferroelectric Behaviour Near Room Temperature in the Organic–Inorganic Hybrid Q₂CuBr₄

A quinuclidinium-based copper bromide molecular ferroelectric, exhibiting a spontaneous polarization of Ps = 0.52 μC/cm², has been successfully synthesized. This compound undergoes an order–disorder phase transition at Tc = 295 K, associated with thermally induced rotational motion of the quinuclidinium cations. This transition results in pronounced changes in both the dielectric constant and thermal properties. The contributions of the organic and inorganic components, as well as their interactions, to the observed electrical and thermal behaviors are discussed using both experimental data and theoretical analysis.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.