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Chiral Amplification in Crystallization under Ultrasound Radiation
Author(s) -
Medina Dana D.,
Gedanken Aharon,
Mastai Yitzhak
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201101221
Subject(s) - crystallization , enantiomer , supersaturation , circular dichroism , optical rotation , crystallography , materials science , chirality (physics) , ultrasound , computer science , physics , chemistry , optics , stereochemistry , thermodynamics , particle physics , chiral symmetry breaking , acoustics , symmetry breaking , nambu–jona lasinio model
Ultrasonic waves applied during the crystallization of slightly enantiomeric‐enriched, supersaturated, aqueous solutions of dl ‐threonine lead to strong chiral amplifications (up to 90 % ee ), particularly at the first stages of the crystallization process (see figure). The findings are confirmed by the optical rotation and circular‐dichroism experiments of the crystallization solutions.