ABSTRACT
This chapter focuses on the synthesis of through-space-conjugated compounds, in particular, by taking advantage of paracyclophane compounds. First, synthetic routes of such paracyclophane-based through-space-conjugated polymers are shown. Then, through-space conjugation is discussed by the oligomeric approach. Application of the through-space-conjugated systems in single molecular wires, in which energy and charges are transferred, is introduced. Conjugated polymers and oligomers have attracted considerable attention in organic chemistry, polymer chemistry, and material chemistry, due to their potential for applications in optoelectronic devices, for example, electroluminescence (EL) devices, field-effect transistors (FETs), and photovoltaic cells. The chapter describes the brief synthetic methods of through-space-conjugated polymers containing paracyclophane in the polymer main chain and their fundamental properties, in addition to the oligomers. When the paracyclophane unit is incorporated into the p-conjugated backbone, new p-electron systems are formed and stacked partially in the main chain in proximity.
