Rod-Like Liquid Crystals with Fluorinated Chains

4 Rod-Like Liquid Crystals with Fluorinated Chains 

In all cases of these rod-like molecules the fluorination of terminal chains leads to mesophase stabilization and to stabilization of smectic phases with respect to nematic phases. In most cases an increase of the melting temperatures11 and a stabilization 

11 Strongly enhanced melting temperatures can hide LC phases in some cases. 

1 Rod-Like Liquid Crystals with One (Semi)Perfluorinated Chain Double Layer Smectic Phases 

Quite generally, steric mismatch requires partial intercalation/interdigitation of some of the segments of the molecules [164] leading to partly intercalated/ interdigitated smectic phases (SmAd, SmCd), which is illustrated by the following examples. 

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