Preparation, Characterization, and FET Properties of Novel Dicyanopyrazinoquinoxaline Derivatives

A series of the title dicyanopyrazinoquinoxaline derivatives have been prepared and characterized by using single-crystal X-ray structure
analysis and redox potential measurements. They have strong electron-accepting properties due to the pyrazinopyrazine skeletons as well as
the cyano groups. Substituents can be easily introduced at the benzene ring and control the HOMO−LUMO energy gap and the molecular
packing. They show clear n-type transistor properties in the FET devices.