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Metastability in Supersaturated Solution and Transition towards Chirality in the Crystallization of NaClO3

Authors

  • Dr. Zoubir El-Hachemi,

    Corresponding author
    1. Department de Química Orgànica and Institute of Cosmos Science (ICC), Universitat de Barcelona (IEEC-UB) c. Martí i Franquès 1, 08028-Barcelona Catalonia (Spain), Fax: (+34) 93-339-7878
    • Department de Química Orgànica and Institute of Cosmos Science (ICC), Universitat de Barcelona (IEEC-UB) c. Martí i Franquès 1, 08028-Barcelona Catalonia (Spain), Fax: (+34) 93-339-7878
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  • Dr. Joaquim Crusats,

    1. Department de Química Orgànica and Institute of Cosmos Science (ICC), Universitat de Barcelona (IEEC-UB) c. Martí i Franquès 1, 08028-Barcelona Catalonia (Spain), Fax: (+34) 93-339-7878
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  • Prof. Josep M. Ribó,

    Corresponding author
    1. Department de Química Orgànica and Institute of Cosmos Science (ICC), Universitat de Barcelona (IEEC-UB) c. Martí i Franquès 1, 08028-Barcelona Catalonia (Spain), Fax: (+34) 93-339-7878
    • Department de Química Orgànica and Institute of Cosmos Science (ICC), Universitat de Barcelona (IEEC-UB) c. Martí i Franquès 1, 08028-Barcelona Catalonia (Spain), Fax: (+34) 93-339-7878
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  • Prof. J. Michael McBride,

    1. Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520 8170 (USA)
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  • Dr. Sabino Veintemillas-Verdaguer

    Corresponding author
    1. Centro de Astrobiología, CSIC-INTA, Ctra. Ajalvir Km. 4, 28850-Torrejón de Ardoz, Madrid (Spain)
    • Centro de Astrobiología, CSIC-INTA, Ctra. Ajalvir Km. 4, 28850-Torrejón de Ardoz, Madrid (Spain)
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  • This work has been supported by the Spanish Ministry of Science (MEC) AYA2009-13920-C02-01-02 and forms part of the COST Action CM07030 Systems Chemistry).

Abstract

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This way or that: Analysis of the chiral composition of the crystal mixture obtained from samples of boiling solutions of NaClO3 (see picture) indicates that symmetry breaking towards homochiral compositions may begin in the metastable stage preceding crystallization, that is, at the level of subcritical clusters.

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