Abstract A series of trans-4–(β-(trans-4′-n-alkylcyclohexyl)-1′}-ethylcyclohexane-1- carboxylates, which show nematic phases, was prepared. Their transition temperatures and enthalpies were measured. Their bulk viscosities and birefringences were determined by extrapolation. The influence of terminal halogeno and alkyl groups on the NI transition temperatures and the CN transition enthalpies for the trans-4–(β-(trans-4′-n-alkylcy- ...