Construction of chlorophyll assemblies based on zinc complexes of triazole-chlorin conjugates

A series of triazole-chlorin conjugates were prepared by Huisgen reactions of a C3-ethynylated chlorophyll derivative with azido compounds. Dimerization behaviour of their zinc complexes was investigated based on UV-vis, circular dichroism, and 1H NMR spectroscopies as well as molecular modelling calculation.