Buhse T, Durand D, Kondepudi D, Laudadio J, Spilker S
Centro de Investigaciones Quimicas, Universidad Autonoma del Estado de Morelos, Avenida Universidad 1001, Colonia Chamilpa, C.P. 62210, Cuernavaca, Morelos, Mexico.
Phys Rev Lett. 2000 May 8;84(19):4405-8. doi: 10.1103/PhysRevLett.84.4405.
Chiral symmetry breaking in stirred crystallization of sodium chlorate ( NaClO3) occurs via the production of secondary crystals from a single "mother crystal." Martin, Tharrington, and Wu [Phys. Rev. Lett. 77, 2826 (1996)] investigated this phenomenon and concluded that it was mechanical crushing of a crystal by the stir bar, not convection, that produces secondary crystals from a single crystal. Here we report the generation of secondary crystals of sodium chlorate when a saturated solution of sodium chlorate is simply made to flow over a sodium bromate ( NaBrO3) crystal. This clearly shows that fluid flows alone can generate and disperse secondary nuclei.
氯酸钠（NaClO₃）搅拌结晶过程中的手性对称性破缺是通过单个“母晶体”产生二次晶体来实现的。马丁、萨林顿和吴[《物理评论快报》77, 2826 (1996)]研究了这一现象，并得出结论：是搅拌棒对晶体的机械破碎，而非对流，导致了从单个晶体中产生二次晶体。在此，我们报告了当使氯酸钠饱和溶液简单地流过溴酸钠（NaBrO₃）晶体时，氯酸钠二次晶体的生成情况。这清楚地表明，仅流体流动就能产生并分散二次晶核。
