EXPLORING THE 2,2'-DIAMINO-5,5'-BIPYYIMIDINE HYDROGEN-BONDING MOTIF -A MODULAR APPROACH TO ALKOXY-FUNCTIONALIZED HYDROGEN-BONDED NETWORKS

The programmed self-association of 2,2'-diamino-4,4'-dialkoxy-5,5'-bip yrimidines allows for the de novo construction of alkoxy-functionalize d H-bonded ribbons and sheets as evidenced by X-ray crystallographic a nalysis. The data provide insight into the interplay of the different structural and interactional features of the molecular components to t he generation of the supramolecular assembly. Hydrophobicity of the di dodecyl side chains of 4c leads to the dominance of the H-bonding fact or, resulting in the formation of a fully interconnected array. These results define the utility of the of 2,2'-diamino-4,4'-dialkoxy-5,5'-b ipyrimidines as a potential scaffold for the attachment of electro- or photochemically active alkoxy residues for self-assembled functional supramolecular materials.