Development of Novel Molecular Conductors with Hydrogen Dynamics

Development of novel molecular materials has been a central issue in molecular science. In this study, we have successfully developed a new type of molecular conductor, where the π -electrons in the conducting layers are coupled to hydrogen dynamics in hydrogen bonds. This unique feature has enabled us to control the π -electron structures and properties by using the hydrogen dynamics. In this paper, the synthesis, structures, and properties of this new type of molecular conductor are summarized, especially focusing on the H/D isotope effect, phase transition behavior, and pressure and electric-field effects.