Noncovalent synthesis of melamine-cyanuric/barbituric acid derived nanostructures: Regio- and stereoselection

The hydrogen bond directed self-assembly of calix[4]arene dimelamines and b arbituric or cyanuric acid derivatives gives ready access to organic nanost ructures of nanometer dimensions. The synthesis, characterization, and supr amolecular chirality of these noncovalent assemblies are discussed in detai l, together with means of achieving regio-, diastereo-, and enantioselectio n. Self-organizing behaviour into higher order aggregates on solid surfaces is also described.