(a)

(b)

(c)

(d)

Figure 2: Optical textures of ((S)-(-)-2-methylbutyl 4′-(4″-n-alkanoyloxybenzoyloxy) biphenyl-4-carboxylates (where )) liquid crystal. (a) SmecticC* phase, (b) smecticC* phase (grey colour), (c) smecticA phase, and (d) smecticA phase (grey colour).