摘要
采用理论和实验研究了二苯甲酮晶体的形态.二苯甲酮晶体的实际生长形态为由{110},{101},{111},{011},{021},{010}和{001}围成的多面体,其中{021},{010}和{001}晶面非常小.形态学理论的所有定量计算模型均预测二苯甲酮晶体的本征形态由{110},{01l},{101},小的{010}和{111}晶面围成,除{111}晶面比实际小以外,其它晶面及其形态重要性顺序与实验结果相符很好.这表明,类似于二苯甲酮的有机晶体在其过冷熔体中的生长形态能够反映出该晶体的本征形态.
Theoretical and experimental studies on the morphology of benzophenone crystal were carried out. the experimental morphology of benzophenone crystal was a polyhedron enclosed by {110},{101},{111},{011},{021},{010}and{001}faces,in which {021},{010}and {001} faces were very small. All of the quantitative models of the morphological theory of crystal growth predicted that, the characteristic morphology of benzophenone crystal was surrounded with {110} ,{101},{011}, small {111}and {010} faces. The calculated crystal faces and the sequence of their morphological importance (M1) met the experimental results well except that {111} faces were smaller than that of experiments. This consistence shew that organic crystals at least like benzophenone grown from their undercooled melts could reflect their characteristic morphologies.
