6. Anchoring Groups Enclosed in the π-Conjugated System in N₂ Molecules

In the previous chapter, single-molecule junctions with a high, well-defined conductance value were fabricated by designing the interaction between molecule and metal and spherical structure. In order to control the electrical properties of the single-molecule junction, it is important to control their interface structure. The anchoring groups enclosed in π-conjugated systems are expected to fix the connecting points with high conductivity. Here, N₂ is discussed as the simplest π-conjugated system with anchoring points. The MCBJ technique combined with theoretical calculations reveals the basic properties of the π-conjugated system with anchoring points: formation and conductance value of the singe-molecule junction.