Supramolecular Assemblies of 1,2-Dicarbadodecaborane(12) with Bowl-Shaped Calix[5]arene

摘要

Treatment of globular 1,2-dicarbadodecaborane(12) (o-carborane) 1 with the bowl-shaped container molecule calix[5]arene 2 affords either the crystalline 1 is to 1 or 1 is to 2 hostguest complexes (o-carborane)(calix[5]arene)(CH_2Cl_2) 3, (o-carborane)(calix[5]arene)(toluene) 4 and (o-carborane)(calix[5]arene)_2(CH_2Cl_2)_(0.5) 5. The three complexes show a remarkable range of different supramolecular interplay beyond the common structural unit, a ball-and-socket nano-structure or supermolecule [(o-carborane) intersect (calix[5]arene)]. Complex 3 forms dimeric [(o-carborane) intersect (calix[5]arene)]_2 units, and 5 has an additional edge on interaction between the supermolecule and a secondary calix[5]arene host.