ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Local symmetry axis for the singlet, orientational distribution of the molecules of a mesophase.

Note 1: The director is defined as a unit vector, but directions +n and -n are arbitrary.

Note 2: In uniaxial nematics, formed by compounds consisting of either rod-like or disc- like molecules, the mean direction of the effective molecular symmetry axis coincides with the director.

Note 3: The director also coincides with a local symmetry axis of any directional property of the mesophase, such as the refractive index or magnetic susceptibility.

Fig. A representation of the molecular organization in a uniaxial nematic mesophase.