The Effect of the Polyaromatic Hydrocarbon in the Formation of Fullerenes.,Angewandte Chemie International Edition

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The Effect of the Polyaromatic Hydrocarbon in the Formation of Fullerenes.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-12-28 , DOI: 10.1002/anie.201915228
Bo Wu ₁ , Li Jiang ₁ , Yi Luo _{2,

3} , Chunru Wang ₁

Affiliation

Tremendous advances in nanoscience have been made since the discovery of fullerenes. However, the short timescale of the growth process and high-energy conditions of synthesis result in severe constraints to investigation of the mechanism of fullerene formation. In this work, we attempted to reveal the formation process by analyzing the variation in the yield of fullerenes under different conditions. Experiments and theoretical analysis show that the formation of fullerenes could be affected by the addition of polycyclic aromatic compounds. It is proposed that the formation of C60 during arc-discharge synthesis is fragment assembling, while the yield of C2m (m=35, 38, 39) is strongly enhanced by building-block splicing. In addition, several features of the building blocks are put forward to predict the extent of their influence to the formation of larger fullerenes C2n (n≥42). This work not only provides essential insight into the formation process of fullerenes, but more importantly also paves the way to improving the yield of larger fullerenes selectively.

中文翻译：

聚芳烃在富勒烯形成中的作用。

自从富勒烯的发现以来，纳米科学取得了巨大的进步。然而，生长过程的时间短和合成的高能条件导致对富勒烯形成机理的研究受到严重限制。在这项工作中，我们试图通过分析在不同条件下富勒烯的收率变化来揭示形成过程。实验和理论分析表明，加入多环芳族化合物可能会影响富勒烯的形成。有人提出，电弧放电合成过程中C60的形成是片段组装，而C2m（m = 35，38，39）的产率可通过砌块拼接大大提高。此外，提出了构建基块的几个特征，以预测它们对较大的富勒烯C2n（n≥42）形成的影响程度。这项工作不仅为富勒烯的形成过程提供了重要的见识，而且更重要的是，还为选择性提高较大的富勒烯的收率铺平了道路。

更新日期：2020-01-24

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