ქიმიის ტერმინთა განმარტებითი ლექსიკონი

Columnar mesophase characterised by a hexagonal packing of the molecular columns.

Note 1: See Fig. for an illustration of the molecular arrangement in a Col_h mesophase.

Note 2: Hexagonal mesophases are often denoted Col_ho or Col_hd where h stands for hexagonal and o and d refer to the range of positional correlations along the column axes: o stands for ordered and d for disordered. The use of the subscripts o and d should be discontinued. ln both cases, the ordering is liquid-like, only the correlation lengths are different.

Note 3: The relevant space group of a Col_h mesophase is P 6/mmm (equivalent to P 6/m 2/m in the International System and point group D_6h in the Schoenflies notation).

Note 4: The lyotropic equivalent of a columnar hexagonal mesophase is known as a hexagonal mesophase; in it, columns of amphiphilic molecules are surrounded by the solvent, normally water, or an oil in an inverse hexagonal mesophase.

Fig. Illustrating the molecular organization of a columnar hexagonal mesophase.