Altering the inclusion properties of CTV through crystal engineering: CTV,carborane, and DMF supramolecular assemblies

The complexes [Na(CTV)(2)(OH)(H2O)](H2O)(DMF)(2)(o-carborane) (3; CTV = cyc lotriveratrylene), [K(OH)(CTV)(DMF)](2)(o-carborane) (4), [(DMF)(CTV)](2)(H 2O)(4)(o-carborane) (5), and (o-carborane)(CTV)(DMF)(2) (6) all form as cry stalline inclusion complexes from N,N'-dimethylformamide (DMF) solution. Co mplexes 3 and 4 are the first reported examples of CTV acting as a chelatin g ligand, with two CTV molecules coordinating cis to the six-coordinate Mcenters (M=Na, K). The extended structures of complexes 3-5 are similar, fo rming extended coordinate and/or hydrogen-bonding interactions and all feat ure intracavity complexation of DMF by CTV, while the complex 6 forms an as sembly of (o-carborane) boolean AND (CTV) ball-and-socket supermolecules wi th DMF as a channel-type included guest.