Orientational ordering of guest induced structural phase transition coupled with switchable dielectric properties in a host–guest crystal: bis(thiourea) thiazolium chloride

Liu, Yuling; Wang, Zhong‐Xia; Han, Xiang‐Bin; Sun, Yinyong; Pryor, Donald

doi:10.1039/c6ra23952h

Cited by 3 publications

(2 citation statements)

References 46 publications

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“…The origin of the dielectric phase transition is attributed to the motional-frozen transitions of the polar components. Hence, molecular order–disorder transitions have gradually evolved into effective methods of exploring new phase transition materials accompanied by promising dielectric properties. − …”

Section: Introductionmentioning

confidence: 99%

Controllable Structures Designed with Multiple-Dielectric Responses in Hybrid Perovskite-Type Molecular Crystals

Wang

Chen

et al. 2017

Inorg. Chem.

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In this report, two new hybrid organic-inorganic perovskite-type compounds, (IBA)CdBr (1; IBA = isobutylammonium cation, i-CH-NH) and (IBA)CdBr (2), have been successfully synthesized by reasonable modulation of the ratio of the reactants. 1 with a one-dimensional (1D) chained structure presents sequential solid-state phase transitions, and 2 with a two-dimensional (2D) layered structure undergoes triple structural phase transitions. The phase transitions are attributable to the stepwise ordering process of the organic IBA cation of the title compounds, which also exhibit temperature-dependent dielectric transitions and dielectric anisotropies. Among the different structural environments, the dynamic motions of organic cations show distinct differences, driving the variation of physical properties.

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Section: Introductionmentioning

confidence: 99%

Controllable Structures Designed with Multiple-Dielectric Responses in Hybrid Perovskite-Type Molecular Crystals

Wang

Chen

et al. 2017

Inorg. Chem.

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“…In assistance of an atomically flat substrate, 2D self-assembled networks can be stabilized on the surface of the substrate based on the noncovalent interactions between molecules and substrates under thermodynamic control. In order to tune the functions and structures, the ordered 2D patterns can go through a structural and functional transition into another one with external stimuli, such as solvents [17][18][19], thermal treatment [20,21], varying concentrations [22,23], light irradiation [24], electric field [25,26], and guest-molecule-induced co-adsorption and desorption processes [27,28].…”

Section: Introductionmentioning

confidence: 99%

Manipulating Molecular Self-Assembly Process at the Solid–Liquid Interface Probed by Scanning Tunneling Microscopy

Li,

Yin

2023

Polymers

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The phenomenon of ordered self-assembly on solid substrates is a topic of interest in both fundamental surface science research and its applications in nanotechnology. The regulation and control of two-dimensional (2D) self-assembled supra-molecular structures on surfaces have been realized through applying external stimuli. By utilizing scanning tunneling microscopy (STM), researchers can investigate the detailed phase transition process of self-assembled monolayers (SAMs), providing insight into the interplay between intermolecular weak interactions and substrate–molecule interactions, which govern the formation of molecular self-assembly. This review will discuss the structural transition of self-assembly probed by STM in response to external stimuli and provide state-of-the-art methods such as tip-induced confinement for the alignment of SAM domains and selective chirality. Finally, we discuss the challenges and opportunities in the field of self-assembly and STM.

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Manipulating Molecular Self-assembly Process at the Solid-Liquid Interface Probed by Scanning Tunneling Microscopy

Li,

Yin

2023

Preprint

View full text Add to dashboard Cite

The phenomenon of ordered self-assembly on solid substrates is a topic of interest in both fundamental surface science research and its applications in nanotechnology. The regulation and control of two-dimensional (2D) self-assembled supra-molecular structures on surfaces have been realized through applying external stimuli. By utilizing scanning tunneling microscopy (STM), researchers can investigate detailed phase transition process about self-assembled monolayers (SAMs), providing insight into the interplay between intermolecular weak interactions and substrate-molecule interactions, which govern the formation of molecular self-assembly. This review will discuss the structural transition of self-assembly probed by STM in response to external stimuli and provide state-of-art methods such as tip induced confinement for the alignment of SAM domains and selective chirality. Finally, we discuss the challenges and opportunities in the field of self-assembly and STM.

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Orientational ordering of guest induced structural phase transition coupled with switchable dielectric properties in a host–guest crystal: bis(thiourea) thiazolium chloride

Abstract: A host–guest crystal: (thiazolium)[(thiourea)2Cl] undergoes order-disorder structural phase transition at 213.7 K, accompanied by distinct switchable dielectric responses.

Cited by 3 publications

References 46 publications

Controllable Structures Designed with Multiple-Dielectric Responses in Hybrid Perovskite-Type Molecular Crystals

Controllable Structures Designed with Multiple-Dielectric Responses in Hybrid Perovskite-Type Molecular Crystals

Manipulating Molecular Self-Assembly Process at the Solid–Liquid Interface Probed by Scanning Tunneling Microscopy

Manipulating Molecular Self-assembly Process at the Solid-Liquid Interface Probed by Scanning Tunneling Microscopy

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