Figure 1.

(a) Chemical structure of C₈O-BTBT-OC₈ and (b) molecular packing in the PS phase²⁴ and the (c) HB phase. The HB phase structure has been solved in this work from single-crystal X-ray diffraction data. Carbon atoms are colored gray (dark gray in the aromatic core and light gray in the alkyl chains), sulfur atoms yellow, and oxygen atoms red; hydrogen atoms have been removed for clarity.