Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds

Two organic–inorganic materials (TMAA)<sub>2</sub>[CoCl<sub>4</sub>] (<b>1</b>) and (TMAA)<sub>2</sub>[MnCl<sub>4</sub>] (<b>2</b>) (TMAA = N,N,N-trimethyl-1-adamantylammonium hydroxide) were synthesized and characterized. It wa...

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Main Authors: Xiao-Feng Chen, Tao Wang, Dan Liao, Nan Wu, Yan Peng, Shi-Yong Zhang, Zhao-Bo Hu
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Magnetochemistry
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Online Access:https://www.mdpi.com/2312-7481/11/5/41
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author Xiao-Feng Chen
Tao Wang
Dan Liao
Nan Wu
Yan Peng
Shi-Yong Zhang
Zhao-Bo Hu
author_facet Xiao-Feng Chen
Tao Wang
Dan Liao
Nan Wu
Yan Peng
Shi-Yong Zhang
Zhao-Bo Hu
author_sort Xiao-Feng Chen
collection DOAJ
description Two organic–inorganic materials (TMAA)<sub>2</sub>[CoCl<sub>4</sub>] (<b>1</b>) and (TMAA)<sub>2</sub>[MnCl<sub>4</sub>] (<b>2</b>) (TMAA = N,N,N-trimethyl-1-adamantylammonium hydroxide) were synthesized and characterized. It was found that both compounds exhibit first-order structural phase transition at high-temperature regions. As the temperature approaches the phase transition point, significant abnormal changes were observed in the dielectric properties and <i>χ</i><sub>M</sub><i>T</i> values of compounds <b>1</b> and <b>2</b>. This phenomenon strongly highlights the dielectric bistable and spin bistable properties of compounds <b>1</b> and <b>2</b>. Further research shows that the dielectric constants of the compounds undergo significant changes upon the application of an external magnetic field, providing strong evidence for the existence of magnetic–dielectric coupling effects within compounds <b>1</b> and <b>2</b>.
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publisher MDPI AG
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series Magnetochemistry
spelling doaj-art-490948f10e504fa2911a595dcf6b37ef2025-08-20T01:56:17ZengMDPI AGMagnetochemistry2312-74812025-05-011154110.3390/magnetochemistry11050041Multifunctional Synergistic Response Induced by Phase Transition in Molecular CompoundsXiao-Feng Chen0Tao Wang1Dan Liao2Nan Wu3Yan Peng4Shi-Yong Zhang5Zhao-Bo Hu6Jiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, ChinaJiangxi Provincial Key Laboratory of Functional Crystalline Materials Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaTwo organic–inorganic materials (TMAA)<sub>2</sub>[CoCl<sub>4</sub>] (<b>1</b>) and (TMAA)<sub>2</sub>[MnCl<sub>4</sub>] (<b>2</b>) (TMAA = N,N,N-trimethyl-1-adamantylammonium hydroxide) were synthesized and characterized. It was found that both compounds exhibit first-order structural phase transition at high-temperature regions. As the temperature approaches the phase transition point, significant abnormal changes were observed in the dielectric properties and <i>χ</i><sub>M</sub><i>T</i> values of compounds <b>1</b> and <b>2</b>. This phenomenon strongly highlights the dielectric bistable and spin bistable properties of compounds <b>1</b> and <b>2</b>. Further research shows that the dielectric constants of the compounds undergo significant changes upon the application of an external magnetic field, providing strong evidence for the existence of magnetic–dielectric coupling effects within compounds <b>1</b> and <b>2</b>.https://www.mdpi.com/2312-7481/11/5/41multifunctional synergistic responsespin bistabilitydielectricphase transitions
spellingShingle Xiao-Feng Chen
Tao Wang
Dan Liao
Nan Wu
Yan Peng
Shi-Yong Zhang
Zhao-Bo Hu
Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
Magnetochemistry
multifunctional synergistic response
spin bistability
dielectric
phase transitions
title Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
title_full Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
title_fullStr Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
title_full_unstemmed Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
title_short Multifunctional Synergistic Response Induced by Phase Transition in Molecular Compounds
title_sort multifunctional synergistic response induced by phase transition in molecular compounds
topic multifunctional synergistic response
spin bistability
dielectric
phase transitions
url https://www.mdpi.com/2312-7481/11/5/41
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AT taowang multifunctionalsynergisticresponseinducedbyphasetransitioninmolecularcompounds
AT danliao multifunctionalsynergisticresponseinducedbyphasetransitioninmolecularcompounds
AT nanwu multifunctionalsynergisticresponseinducedbyphasetransitioninmolecularcompounds
AT yanpeng multifunctionalsynergisticresponseinducedbyphasetransitioninmolecularcompounds
AT shiyongzhang multifunctionalsynergisticresponseinducedbyphasetransitioninmolecularcompounds
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