Published March 14, 2015 | Version v1
Journal article

Anisotropy-guided enantiomeric enhancement in alanine using far-UV circularly polarized light

Description

All life on Earth is characterized by its asymmetry – both the genetic material and proteins are composed of homochiral monomers. Understanding how this molecular asymmetry initially arose is a key question related to the origins of life. Cometary ice simulations, L-enantiomeric enriched amino acids in meteorites and the detection of circularly polarized electromagnetic radiation in star-forming regions point to a possible interstellar/protostellar generation of stereochemical asymmetry. Based upon our recently recorded anisotropy spectra g(λ) of amino acids in the vacuum-UV range, we subjected amorphous films of racemic 13

Abstract

International audience

Additional details

Created:
March 26, 2023
Modified:
November 29, 2023