Certain catenanes exhibit optical activity due to mechanical chirality
Is it true that certain catenanes exhibit optical activity due to mechanical chirality?
Yes. Specific catenanes exhibit optical activity and chirality stemming from their mechanical and topological interlocked structures, as confirmed by spectroscopic and crystallographic analyses.
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The retrieved literature provides multiple direct examples of catenanes and mechanically interlocked molecules displaying topological or mechanical chirality, with optical activity demonstrated via circular dichroism spectroscopy.
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R, J., MJ, P., ZH, Z., G, Z., B, G., & DA, L. (2024). Active template synthesis.. doi.org. https://doi.org/10.1039/d4cs00430b
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L, C., Z, C., W, W., C, C., Y, K., C, Z., C, L., & S, Z. (2024). Interwoven Trimeric Cage-Catenanes with Topological Chirality.. doi.org. https://doi.org/10.1021/jacs.4c10104
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H, T., Y, Z., HN, Z., & GX, J. (2025). Stereoselective construction of coconformational mechanically helical and topologically chiral [2]catenanes induced by point chirality.. doi.org. https://doi.org/10.1073/pnas.2426356122
What does the evidence say?
The retrieved literature provides multiple direct examples of catenanes and mechanically interlocked molecules displaying topological or mechanical chirality, with optical activity demonstrated via circular dichroism spectroscopy.
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