They are all chiral molecules and belong in the racemate.
它们都是手性分子，属于外消旋体。
In the present review, we describe the asymmetric synthesis via the reactions of chiral crystals of achiral molecules.
本文将综述通过非手性分子形成的手性晶体的固相反应进行的“绝对”不对称合成。
In this dissertation, optical rectification effect of chiral molecular medium is investigated based on classical model of chiral molecules.
本论文在已有手性分子经典模型的基础上，研究了手性分子介质的光整流效应。
The relationship between helical structure of chiral molecules and their optical activities has been concerned permanently by organic chemists.
手性化合物的螺旋结构与其光学活性的关系，是有机化学家长期关注的问题。
To see whether it could be used to distinguish between left and right-handed molecules, they shone it on fluorescent chiral molecules, which glow when they are excited.
为判别这种光束是否可以用来分辨分子手性，他们将光束照射到荧光手性分子上，分子被激发后会发出荧光。
Early Earth seems to have been covered in a soup of organic molecules with no chiral preference.
早期的地球似乎是被一层并不存在手性偏好的有机分子汤所覆盖。
"Many drug molecules are chiral and the two mirror images are pharmalogically different and do not have same interactions with the body," says Cohen.
“许多药物分子是手性的，并且两种镜象结构在药理上（pharmalogically）有所区别，对人体的作用是不同的”，科恩说。
The preliminary results indicate that these chiral molecular tweezers not only recognize neutral molecules, but also show enantio-selectivity for D/L-amino acid methyl esters.
初步研究结果表明，这类分子钳受体不但对中性小分子具有识别性能，而且对D/L氨基酸甲酯具有对映选择性识别性能。
The preliminary results indicate that these chiral molecular tweezers not only recognize neutral molecules, but also show enantio-selectivity for D/L-amino acid methyl esters.
初步研究结果表明，这类分子钳受体不但对中性小分子具有识别性能，而且对D/L氨基酸甲酯具有对映选择性识别性能。
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