Figure 6.

Oligomeric twist–bend nematogens: a) truncated synthetic route to O4₇ and O6₇, with the transition temperatures of related dimer given alongside the two oligomers;50 b) comparison of the all‐trans geometries and end‐to‐end lengths obtained at B3LYP/6‐31G(d) for O2₇ (ca. 4 nm), O4₇ (ca. 8 nm) and O6₇ (ca. 12 nm); c) POM image of the nematic phase of O4₇ at 184 °C; d) the same region cooled into the N_TB phase of O4₇ at 169 °C; e) POM image of the schlieren texture of the nematic phase of O6₇ at 174 °C; f) approximately the same region of O6₇ cooled into the N_TB phase at 156 °C showing the blocky texture.50