Enhancing Strategies for the Assembly of Metal–Organic Systems with Inherent Cavity-Containing Calix[4]arenes

<i>p</i>-Carboxylatocalix­[4]­arenes have recently emerged as useful building blocks in the assembly of both discrete and polymeric coordination compounds. Steric effects of coligands used are now shown to dramatically influence the assembly process, dictating the assembly of one-dimensional (1D)-three-dimensional (3D) systems. Solvothermal techniques have also been found to promote formation of 3D systems with a sterically undemanding coligand.