Synchronous assembly of chiral skeletal single-crystalline microvessels
Synchronous assembly of chiral skeletal single-crystalline microvessels
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DOI：
10.1126/science.abm9596
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发表时间：
2022-08-05
期刊：
影响因子：
56.9
通讯作者：
Yamamoto, Yohei
中科院分区：
文献类型：
--
作者：
Oki, Osamu;Yamagishi, Hiroshi;Yamamoto, Yohei
骨架或凹面多面体晶体出现在各种合成工艺和自然环境中。然而，由于它们的高度动力学生长特性，它们的形态、尺寸和取向很难控制。我们报道了一种从平面手性双层分子中实现同步、单轴和逐步生长微米级骨架单晶的方法。当加热的乙醇溶液滴到石英衬底上时，分子自发地在衬底的大范围内单轴同步地组装成站立的管状单晶，具有小尺寸的多分散性。即使在消耗分子之后，晶体边缘也是活跃的，并通过连续的进料恢复立体选择性生长。所生成的形貌可以被填充成多环芳烃类微结构，并表现为微观容器。
Skeletal or concave polyhedral crystals appear in a variety of synthetic processes and natural environments. However, their morphology, size, and orientation are difficult to control because of their highly kinetic growth character. We report a methodology to achieve synchronous, uniaxial, and stepwise growth of micrometer-scale skeletal single crystals from planar-chiral double-decker molecules. Upon drop-casting of a heated ethanol solution onto a quartz substrate, the molecules spontaneously assemble into standing vessel-shaped single crystals uniaxially and synchronously over the wide area of the substrate, with small size polydispersity. The crystal edge is active even after consumption of the molecules and resumes stereoselective growth with successive feeding. The resultant morphology can be packed into polycyclic aromatic hydrocarbon-like microarchitectures and behaves as a microscopic container.