Liquid crystals questions
1. One compound in use in liquid crystal displays is 4-pentyl-4’-cyanobiphenyl. Explain the importance of the following features, which help to give the compound good liquid crystal properties: (a) the cyanide group, −CN. (b) the pentyl group, −C5H11. (c) the two disubstituted phenyl groups, -C6H4. 2. Explain why: (a) Soap solutions only tend to show liquid crystal behaviour at quite high concentrations. (b)...