In the extension of our previous work1 on the exocylic coordination polymer 1 exhibiting a photoluminescence switching behavior, the influences of potassium(I) on the networking of calix-bis-monothiacrown (L) with copper(I) iodide are reported. First, one-pot reaction of L with CuI/KI afforded a 1-D coordination polymer 2, of a formula [K2(Cu4I6)L]n, exhibiting the endocyclic dipotassium complex units are linked by exocyclic scoop-type Cu4I62- clusters via Cu-S bonds. On the other hand, stepwise reaction of 1 with KI gave a mixture of 3, [K8(Cu8I16)(L4)]n and 4, [K4(Cu4I8)(L2)]n, which show 1-D and 2-D structures linked with rhomboidal Cu2I2 clusters, respectively, encapsulating two potassium(I) ions inside the cavity in each case. Further study on the endo/exo complexation and networking is in progress.
1. J. Y. Lee, H. J. Kim, J. H. Jung, W. Sim, S. S. Lee, J. Am. Chem. Soc. 2008, 130, 13838.