Phosphorescent metallaknots of Au(I)-bis(acetylide) strands directed by Cu(I) π-coordination.

Knots containing metal atoms as part of their continuous strand backbone are termed as metallaknots. While several metallaknots have been synthesized through one-pot self-assembly, the designed synthesis of metallaknots by controlling the arrangement of entanglements and strands connectivity remains unexplored. Here, we report the synthesis of metallaknots composed with Au(I)-bis(acetylide) linkages and templated by Cu(I) ions.

A stereoselective protocol for the synthesis of a molecular cinquefoil (5) knot.

Here, we present a protocol for the complete stereoselective synthesis of a molecular 5 knot. Enantiopure chiral ligands serve as the starting point, while Zn(OTf) acts as the template, facilitating the quantitative formation of pentameric circular helicates with 100% d.e.