Mesomorphic Properties And Molecular Structure of Four Closely Related Compounds

Abstract

In this paper we have reported the results of X-ray diffraction studies on magnetically aligned samples of four closely related compounds. These compounds are (1) p-methoxy phenyl trans-4-pentyl cyclohexane carboxylate (2) p-propoxy phenyl trans-4-pentyl cyclohexane carboxylate (3) p-ethoxy phenyl trans-4-bulyl cyclohexane carboxylate and (4) p-cyano phenyl trans-4-pentyl cyclohexane carboxylate. Structural parameters and orientational order parameters of the compounds have been determined at different temperatures. The way in which the molecules are stacked has been discussed.

Key Words:

• X-ray Study
• Molecular Parameters
• Nematogens