ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Smectic A and smectic C mesophases characterised by anti-parallel (SmA₂, SmA_d, and SmC₂, SmC_d) and random (SmA₁ and SmC₁) alignments of the molecular dipoles within the layer thickness in Fig.

Note 1: See Figs. 1 and 2 for illustrations of the molecular arrangements in the

mesophases.

Note 2: The subscripts 1, d and 2 indicate that the layer thickness is one, d and two times the fully-extended molecular length, with 1<d<2.

Note 3: SmA_dand SmC_d mesophases form bilayers with partial overlapping of the molecules of adjacent layers.

Note 4: SmA₂ and SmC₂ phases form bilayers with anti-parallel ordering of the molecules.

Note 5: Bilayer structures are also known for SmB and crystal E mesophases.

Fig. 1 Illustrating the molecular structures of SmA_d, SmA₁, and SmA₂mesophases.

Fig. 2. Illustrating the molecular structures of SmC_d, SmC₁, and SmC₂mesophases.