There are some fundamental charactaristics of liquid crystal. One of them is that all liquid crystals are organic compounds and at one side of their long molecular foundation there exists a polar group such as -CN, -NO2, -NH2, -OR etc.

A strong dipole effect in molecules is created by the existance of polar group; so the molecular axies are parallel.

Actually I don't understand the characteristic perfectly because of having confusion at several terms.

My questions are :

  1. What are the polar polar groups?
  2. What is the strong dipole effect?
  3. What is molecular axis?

I especially want to know about molecular axis with an extant explanation.

  • $\begingroup$ Could you perhaps include the source of where you got this? $\endgroup$ – Jerry Apr 11 '13 at 10:25
  • $\begingroup$ Molecular axis is the 'long direction' for a molecule that is roughly cylindrical or rectangular flat. the rest of the terms you explained in your question. $\endgroup$ – Lighthart Apr 12 '13 at 19:19

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