On the chiroptical properties of racemic crystals.
On the chiroptical properties of racemic crystals.
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DOI：
10.1002/chir.22820
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发表时间：
2018-04
期刊：
影响因子：
2
通讯作者：
B. Kahr;Alexander T Martin;K. Ernst
中科院分区：
文献类型：
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作者：
B. Kahr;Alexander T Martin;K. Ernst
在雷恩（2017年6月）举行的第16届国际热学光谱会议上讨论的关于“外消旋体的光学活性”的最近一封信中，科学家声称已经测量了两种过渡金属配合物的有色外消旋晶体的圆二色性，这些观察结果“有助于纠正我们对外消旋体光学性质的理解中的明显缺陷”。事实上，我们对外消旋物的光学性质的认识并没有不足。此外，所提出的测量结果不能令人信服地作为各向异性晶体中测量的圆二色性的证据，因此不能告诉我们对所研究的特定晶体或一般而言的外消旋物的理解。
In a recent letter on the "Optical activity from racemates", discussed at the 16th International Conference on Chiroptical Spectroscopy in Rennes (June 2017), scientists claimed to have measured the circular dichroism of colored, racemic crystals of two transition metal complexes, observations that "serve to correct a clear deficit in our understanding of the optical properties of racemates." In fact, there is no deficit in our understanding of the optical properties of racemates. Moreover, the measurements presented are unconvincing as evidence of circular dichroism measured in anisotropic crystals and therefore do not inform our understanding of the specific crystals investigated, or racemates generally speaking.