Chiral two-dimensional conjugated metal-organic frameworks with high spin polarization

Two-dimensional conjugated metal-organic frameworks have garnered significant research interest as emerging candidates for organic 2D crystal materials. In classical 2D crystals, chirality can give rise to unique physical phenomena; however, the precise implantation of chirality into 2D c-MOFs has yet to be demonstrated. Here, we demonstrate an example of chiral 2D c-MOFs obtained through the side chain-induced chirality amplification strategy to achieve tunable chiral expression, enabling notable chirality amplification. Chiral substitutions induce distortions in the 2,3,7,8,12,13-hexaiminotriindole conjugated ligand along distinct orientations, effectively transferring their chirality to the conjugated backbone. The resulting frameworks exhibit tunable chirality through steric control, where chiral naphthylethyl substitution increases the distortion angle from 2.3° to 7.0°, leading to pronounced chirality amplification. Furthermore, the chiral 2D c-MOFs demonstrate exceptional spin polarization measured by magnetic-conductive atomic force microscopy (mc-AFM), achieving a value as high as 96.9%, placing them among the highest-performing materials reported to date. This work opens new avenues for the design of chiral 2D crystal materials with potential applications in chiral spintronics.

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Publication Details

Journal
Nature Communications
Published
2025-10-27
DOI
https://doi.org/10.1038/s41467-025-64969-9
Primary Topic
Metal-Organic Frameworks: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
0.00

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article

Chiral two-dimensional conjugated metal-organic frameworks with high spin polarization

Yang Ming Lu, Morteza Torabi, Mike Hambsch, Markus Löffler et al.
Nature Communications
Metal-Organic Frameworks: Synthesis and Applications
article

Chiral two-dimensional conjugated metal-organic frameworks with high spin polarization

Yang Ming Lu, Morteza Torabi, Mike Hambsch, Markus Löffler, Stefan C. B. Mannsfeld, Ran He, Florian Auras, Xing Huang, Li Wan, Xizheng Wu, Bernd Plietker, Claudia Felser, Lukas Sporrer, Chenchen Wang, Xia Wang, Dongxu Wang, Xinliang Feng, Shiyi Feng, Paul-Alexander Laval-Schmidt
article en

Abstract

Two-dimensional conjugated metal-organic frameworks have garnered significant research interest as emerging candidates for organic 2D crystal materials. In classical 2D crystals, chirality can give rise to unique physical phenomena; however, the precise implantation of chirality into 2D c-MOFs has yet to be demonstrated. Here, we demonstrate an example of chiral 2D c-MOFs obtained through the side chain-induced chirality amplification strategy to achieve tunable chiral expression, enabling notable chirality amplification. Chiral substitutions induce distortions in the 2,3,7,8,12,13-hexaiminotriindole conjugated ligand along distinct orientations, effectively transferring their chirality to the conjugated backbone. The resulting frameworks exhibit tunable chirality through steric control, where chiral naphthylethyl substitution increases the distortion angle from 2.3° to 7.0°, leading to pronounced chirality amplification. Furthermore, the chiral 2D c-MOFs demonstrate exceptional spin polarization measured by magnetic-conductive atomic force microscopy (mc-AFM), achieving a value as high as 96.9%, placing them among the highest-performing materials reported to date. This work opens new avenues for the design of chiral 2D crystal materials with potential applications in chiral spintronics.

Nature CommunicationsVol. 16(1)
Bu-Ali Sina University (IR), Leibniz Institute for Solid State and Materials Research (DE), Max Planck Institute of Microstructure Physics (DE), Max Planck Institute for Chemical Physics of Solids (DE), Max Bergmann Zentrum für Biomaterialien (DE), Ministry of Energy (IL), Technische Universität Dresden (DE)
Deutsche Forschungsgemeinschaft, China Scholarship Council
Openalex Percentile: Top 74%
Metal-Organic Frameworks: Synthesis and Applications
DOIOpen Access PDFOpenAlex
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