Abstract
A polar function like pyridine increases the polarity difference between mono- and disubstituted 1,4- bis(trimethylsilylethynyl)bicyclo[2.2.2]octane cores allowingfor their ready separation by chromatography, affording two dissymmetrical ligands illustrated in metal–rotor hybrids like a corner-shaped mononuclear complex, an octahedral hexanuclear metal complex, and a framework solid with a rather slow rotator.