Stereochemistry and Twisted Crystals,Israel Journal of Chemistry

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Stereochemistry and Twisted Crystals
Israel Journal of Chemistry ( IF 2.3 ) Pub Date : 2021-09-13 , DOI: 10.1002/ijch.202100063
Catherine E. Killalea ₁ , David B. Amabilino ₁

Affiliation

This review article discusses a link between stereochemistry and structural and morphological chirality. We present the remarkably frequent, but less often reported, growth of twisted crystals and discuss the reasons for their formation and ways to favor their growth. The more commonly encountered conglomerates and racemic compounds can be formed by achiral molecules, but the emergence of morphological chirality is often not considered in this context and perhaps deserves attention. Twisted crystals are known for a wide variety of materials, molecular and macromolecular, complexes and oxides, and so on. In growing crystals, twisting of lamellae because of strain generated during growth eventually unwinds in larger objects, and may not be detected. This kind of chiral morphology arising from low symmetry growth, and the challenges and opportunities for research in the area, are highlighted. In particular, the link between structural bending in supramolecular aggregates in solution or at interfaces, chiral nanofilaments in liquid crystals, and chiral polymers, is discussed.

中文翻译：

立体化学和扭曲晶体

这篇评论文章讨论了立体化学与结构和形态手性之间的联系。我们展示了扭曲晶体的生长非常频繁，但很少被报道，并讨论了它们形成的原因和促进它们生长的方法。更常见的聚集体和外消旋化合物可以由非手性分子形成，但形态手性的出现在这种情况下通常不被考虑，也许值得关注。扭曲晶体以多种材料、分子和大分子、复合物和氧化物等而著称。在生长晶体中，由于生长过程中产生的应变而导致的薄片扭曲最终会在较大的物体中展开，并且可能无法检测到。这种由低对称性生长产生的手性形态，并强调了该领域研究的挑战和机遇。特别讨论了溶液中或界面处超分子聚集体的结构弯曲、液晶中的手性纳米丝和手性聚合物之间的联系。

更新日期：2021-10-25

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