Plasmonic Manipulation of Sodium Chlorate Chiral Crystallization: Directed Chirality Transfer via Contact-Induced Polymorphic Transformation and Formation of Liquid Precursor

Plasmonic Manipulation of Sodium Chlorate Chiral Crystallization: Directed Chirality Transfer via Contact-Induced Polymorphic Transformation and Formation of Liquid Precursor
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氯酸钠手性结晶的等离子体操纵:通过接触诱导的多晶型转变和液体前体的形成进行定向手性转移

DOI:
10.1021/acs.cgd.0c00693
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发表时间:
2020
影响因子:
3.8
通讯作者:
Uda Satoshi
Uda Satoshi
中科院分区:
化学2区
文献类型:
--
作者:
Niinomi Hiromasa;Sugiyama Teruki;Tagawa Miho;Ujihara Toru;Omatsu Takashige;Miyamoto Katsuhiko;Yoshikawa Hiroshi Y.;Kawamura Ryuzo;Nozawa Jun;Okada Junpei T.;Uda Satoshi

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结晶过程的控制不仅对功能性结晶材料或药物的制备有重要影响,而且对结晶机理的研究也有重要意义。最近,我们已经发现,等离子体光镊(POT)可以“操纵”从其水溶液中的药物化合物的结晶,通过光学捕获分子簇,提供了一种新的策略来控制结晶。在这里,我们报告了各种独特的结晶现象,通过应用POT氯酸钠(NaClO3)从加载在等离子体基片上的水微滴手性结晶。等离子体激元激发显着促进结晶介导的非手性亚稳晶体作为前体。此外,可以控制所得手性晶体的蠕变方向。利用这一现象,我们实现了从手性晶体的定向手性转移到非手性晶体通过强制接触诱导的多晶型转变,通过故意使蠕变手性晶体与非手性晶体接触。此外,我们捕获,通过原位光学显微镜观察,液体前体的中间体NaClO3的非手性结晶的第一次。我们的研究结果突出了等离子体操纵结晶打开了一扇新的大门,不仅要控制结晶,而且要调查前所未有的基本过程的结晶。
The control of crystallization not only impacts the production of functional crystalline materials or pharmaceuticals but also provides profit to investigate the fundamental mechanism of crystallization. Recently, we have revealed that plasmonic optical tweezers (POT) can “manipulate” the crystallization of a pharmaceutical compound from its aqueous solution by optically trapping molecular clusters, offering a novel strategy to control crystallization. Here we report a variety of unique crystallization phenomena by applying POT to sodium chlorate (NaClO3) chiral crystallization from an aqueous microdroplet loaded on a plasmonic substrate. Plasmon excitation significantly promotes crystallization intermediated by an achiral metastable crystal as a precursor. Also, the direction of the creeping of the resulting chiral crystal can be controlled. By utilizing this phenomenon, we achieved the directed chirality transfer from the chiral crystal to the achiral crystal via a forced contact-induced polymorphic transformation by intentionally making creeping chiral crystal contact with an achiral crystal. Moreover, we captured, byin situoptical microscopic observation, a liquid precursor that intermediates the NaClO3achiral crystallization for the first time. Our results highlight the plasmonic manipulation of crystallization opening a new door not only to control crystallization but also to investigate the unprecedented fundamental process of crystallization.
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