论文标题

通过一系列表面反应将轴向分子手性转移

Transferring Axial Molecular Chirality Through a Sequence of On-Surface Reactions

论文作者

Merino-Díez, Néstor, Mohammed, Mohammed S. G., Castro-Esteban, Jesús, Colazzo, Luciano, Berdonces-Layunta, Alejandro, Lawrence, James, Pascual, J. Ignacio, de Oteyza, Dimas G., Peña, Diego

论文摘要

多年来,对固体表面上的手性过程的精细管理仍在进步,但仍面临着对高级手性材料的控制和选择性生产的需求。在这里,我们报告了使用对映体富集的分子构建块的使用,以证明其内在性手性沿一系列地表反应的传播。通过热退火触发,该实验中诱导的地下反应率首先涉及手性反应物偶联到手性聚合物中,然后将其转化为平面预芯石墨烯纳米骨。我们的研究表明,反应物的轴向手性不仅转移到聚合物中,而且转移到了石墨烯纳米碳终端产物的平面手性上。因此,这种手性转移允许从富含的对映反应物开始,从而控制了手性和手持有机纳米体系研究,并具有预定义的手法。

Fine management of chiral processes on solid surfaces has progressed over the years, yet still faces the need for the controlled and selective production of advanced chiral materials. Here, we report on the use of enantiomerically enriched molecular building blocks to demonstrate the transmission of their intrinsic chirality along a sequence of on-surface reactions. Triggered by thermal annealing, the on-surface reac-tions induced in this experiment involve firstly the coupling of the chiral reactants into chiral polymers and subsequently their transformation into planar prochiral graphene nanoribbons. Our study reveals that the axial chirality of the reactant is not only transferred to the polymers, but also to the planar chirality of the graphene nanoribbon end products. Such chirality transfer consequently allows, starting from ad-equate enantioenriched reactants, for the controlled production of chiral and prochiral organic nanoarchi-tectures with pre-defined handedness.

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