Structures of the Crystal J and G Phases

The crystal J and G modifications [66,67] are the crystalline analogues of the smectic I and F phases, respectively [3, 4]. For example, in the J phase the molecules are arranged in layers where their long axes are 

Essentially, as far as the extent of positional ordering is concerned, these modifications are crystallinic. However, the mo- 

Hexagonal Packing - Perpendicular 10 Ilia Tilt Dlracllon 

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