Supramolecular compounds of cucurbituril with molybdenum and tungsten chalcogenide cluster aqua complexes

A review of the methods of synthesis and data on the structure of a new class of supramolecular compounds formed from molecules of macrocyclic cavitand cucurbituril and triangular thio- and selenobridge aquacomplexes of molybdenum and tungsten, as well as their heterometallic mono- and biscubane derivatives, is presented. Structural motives of the above-mentioned supramolecular compounds along with factors affecting their formation, i.e. nature of aquacomplex, concentration of hydrochloric acid and integration of the molecules into cucurbituril inner cavity, were considered