Mesomorphic behavior of new double swallow‐tailed compounds

Double swallow‐tailed compounds are special cases of tetracatenar mesogens (mesogens consisting of a rod‐like core and two half‐disc shaped moieties), where the branches are not attached directly to the terminal rings. Experiments are reported in which the middle part of the core and the length of the terminal chains were varied. The resulting effects on the transition temperatures and phase behavior are described and trends pointed out.