The parity-violating energy shift, E(pv), was calculated for right-han
ded helical n-alkanes CnH2n+2 (n = 4-11) and the dependence of the E(p
v) value on molecular evolution was examined. It was shown that the ri
ght-handed n-alkane helix is more stable than its mirror image, and th
e energy difference between the mirror-image molecules increases const
antly as the chain length increases.