1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl)-benzene

摘要

A tolan derivative useful as a component of liquid crystal materials and being superior to conventional tolan derivatives in the characteristics of DELTA n and viscosity, and a liquid crystal composition containing the same are provided, which tolan derivative is expressed by the formula <IMAGE> (I) wherein R1 and R2 each represent an alkyl group of 1 to 10 carbon atoms.