Homochiral hexanuclear nickel(ii) metallocyclic structures with high activity for the photocatalytic degradation of organic dyes.

Enantiopure ligands, namely (R,R)- and (S,S)-2,2'-(1,4-phenylene) bis(4,5-dihydrothiazole-4-carboxylic acid) (H2LRR, and H2LSS) were synthesized, and homochiral metallocyclic rings {NiL(HO)} (1RR) and {NiL(HO)} (1SS) were obtained and their structures were determined. The complexes exhibit excellent activity for the photocatalytic degradation of organic dyes.