isochiral stem packing

https://doi.org/10.1351/goldbook.14221
Crystalline packing of stems having the same helicity.
Note: The term is applicable to macromolecules that are chiral or adopt a chiral conformation in the crystal (e.g., a helical conformation).
Source:
PAC, 2011, 83, 1831. (Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)) on page 1846 [Terms] [Paper]