Ligand- and Anion-Directed Assembly of Exo-Coordinated Mercury(II) Halide Complexes with O₂S₂-Donor Macrocycles

Assembly reactions of mercury(II) halides (Cl, Br, and I) with two O₂S₂ macrocycles (L¹ and L²) having different interdonor (S···S) distances were investigated, and four types of supramolecular complexes (1−4b) were obtained depending on the S···S distances as well as the size of the halide anions. Photoluminescence of these compounds was also studied.