4-n-alkylphenyl 4-n-alkylbicyclo (2.2.2) octane-1-carboxylates to produce new series of low melting esters with large nematicranges. In particular, thirty 4-n-alkyl-2-fluorophenyl and thirteen 4-n-alkyl-2-chlorlorophenyl 4-n-alkylbicyclo (2.2.2)octane-1-carboxylates are reported. The effect of the various lateral substituents on the clearing points and viscosities of the esters are rationalized in terms of