Interlocking unstable motifs is a useful way to enhance their stability through shielding protection. Now, stable interlocked polyynes bearing several macrocycles have been prepared, including a [5]rotaxane having 34 contiguous alkynes with properties similar to those of carbyne.
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Saura-Sanmartin, A. Interlocked polyynes towards stable carbynes. Nat. Chem. 16, 154–156 (2024). https://doi.org/10.1038/s41557-023-01425-5
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DOI: https://doi.org/10.1038/s41557-023-01425-5
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