A dicopper(I) trefoil knot is synthesized in 30% yield by the use of 1,3-phenylene spacers, the double stranded helical precursor complex being formed quantitatively.
C. O. Dietrich-Buchecker, J. Sauvage, A. De Cian and J. Fischer, J. Chem. Soc., Chem. Commun., 1994, 2231 DOI: 10.1039/C39940002231
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