New concept of the origin of life on earth

Abstract

A model of coupled autocatalytic reactions with allowance for the crystallization of diastereomer is considered. It is shown that the differences in the physical properties of diastereomers can be a 100% enantioselective factor, which makes it possible to obtain a significant chiral polarization even at low autocatalysis enantioselectivity. In terms of a complicated model, more complex molecules should have a higher chiral polarization than simpler ones. The calculation of the dynamics of the model under consideration shows that the presence of binomial coefficients in the reaction of pair formation from two different enantiomers (provided that diastereomers have identical properties) leads to the occurrence of an additional 100% enantioselective factor. Estimation shows that the theoretical difference between the right- and left-handed molecules (which is due to weak interaction), described in the literature, is sufficient to explain the directed symmetry breaking and construction of biological molecules from L-amino acids and D-sugars at the origin of life on earth.