An (8,3)-a 3D Coordination Network and Concomitant Three-Connected Supramolecular Isomers

An unprecedented (8,3)-a 3D coordination network was synthesized using crystal engineering strategies as one of three concomitant supramolecular isomers of the general formula [Cu2(tae)(bipy) 2 ]·2NO 3 - ·xS (bipy = 4,4'-bipyridine; tae = dibasic tetraacetyl-ethane; S = solvent: H 2 O/MeOH). The (8,3)-a network yields optically active single crystals with 58% solvent-accessible volume, despite 4-fold interpenetration.