Constructing supramolecular nanostructure by hydrogen-bonding

The diquinoxalino (2.3-2′.3′-a.c) phenazine (DQP), containing 6 nitrogen atoms, was synthesized, and its adsorption and self-assembling behavior on highly oriented pyrolytic graphite (HOPG) was studied by scanning tunneling microscopy (STM) under ambient conditions. With 1,14-tetradecanedioic acid as a bridge, uniform two-dimensional arrays of 1,14-tetradecanedioic acid/DQP nanostructure were successfully fabricated. The result illustrates that it is possible to construct and control supramolecular nanostructure by intermolecular hydrogen-bonding. Supported by the National Natural Science Foundation of China (Grant Nos. 50478117, 20573116, 50573089, 20473097 and 90406019) and the Graduate Innovation Foundation of Jiangxi Province, China