ArticleCommunications chemistry2023
Benzothiadiazole-based rotation and possible antipolar order in carboxylate-based metal-organic frameworks.
Article in Communications chemistry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 13 citations in OpenAlex.
- sln-Topological Covalent Organic Frameworks with Shape Dimorphism and Dipolar Rotors.Journal of the American Chemical Society · 2025Article
- Engineering of Rotational Dynamics via Polymorph Manipulation.The journal of physical chemistry. A · 2024Article
- Internal Secondary Relaxation as a Dielectric Probe of Molecular Surroundings.The journal of physical chemistry letters · 2024Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
By modifying organic ligands of metal-organic framework with dipolar units, they turn suitable for various applications, e.g., in the field of sensor systems or switching of gas permeation. Dipolar linkers in the organic ligand are capable to rotate in certain temperature and frequency ranges. The copper-bearing paddlewheel shaped metal-organic frameworks ZJNU-40 and JLU-Liu30 possess such a polarizable dipole moment due to their benzothiadiazole moiety in the organic ligands. Here, we investigate the molecular rotor behavior of benzothiadiazole units of the two carboxylate-based MOFs by dielectric spectroscopy and computational simulation. Our dielectric results provide clear evidence for significant reorientational relaxation dynamics of these rotors, revealing various characteristics of glasslike freezing upon cooling. The calculated rotational energy barriers are consistent with experimentally determined barriers for single-dipole dynamics. Moreover, for JLU-Liu30 we find hints at antipolar ordering below about 300 K.
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Registered trials
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