Helisowość

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Enantiomers P and M.

Helisability - a sort of chirality of a molecular entity having the shape of a helix (cylindrical or conical). It can be treated as a kind of axial chirality where the helix axis is the chirality axis. Twisted-headed helix is ​​described by stereodecript P (plus) or Δ (delta), and left-handed M (minus) or Λ (lambda). The nomenclature Δ / Λ is mainly used to describe the chirality of metal complexes. Specifying an absolute configuration

The direction of the helix can be determined by looking at it along its axis. If it moves away from the observer by turning clockwise, the absolute configuration is P (plus). Otherwise, ie when the helix moves counterclockwise, the absolute configuration describes the stereodescript M (minus). P-heptahelicen M-heptahelicen Heptahelicene enantiomers.

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