Triangulenes: From Precursor Design to On-Surface Synthesis and Characterization.,Angewandte Chemie International Edition

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Triangulenes: From Precursor Design to On-Surface Synthesis and Characterization.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-02-11 , DOI: 10.1002/anie.201913783
Jie Su _{1,

2} , Mykola Telychko _{1,

2} , Shaotang Song ₁ , Jiong Lu _{1,

2}

Affiliation

Triangulene and its higher homologues are a class of zigzag-edged triangular graphene molecules (ZTGMs) with high-spin ground states. These open-shell molecules are predicted to host ferromagnetically coupled edge states with net spin values scaling with molecular size and are therefore considered promising candidates for future molecular spintronics applications. Unfortunately, the synthesis of unsubstituted [n]triangulenes and the direct observation of their edge states have been a long-standing challenge due to a high reactivity towards oxygen. However, recent advances in precursor design enabled the on-surface synthesis and characterization of unsubstituted [3]-, [4]-, and [5]triangulene. In this Minireview, we will highlight key aspects of this rapidly developing field, ranging from the principles of precursor design to synthetic strategies and characterization of a homologous series of triangulene molecules synthesized on-surface. We will also discuss challenges and future directions.

中文翻译：

三角烯：从前体设计到表面合成和表征。

Triangulene及其更高的同系物是一类具有高自旋基态的锯齿形三角形石墨烯分子（ZTGMs）。预计这些开壳分子将具有铁自旋耦合的边缘状态，其净自旋值随分子大小缩放，因此被认为是未来分子自旋电子学应用的有希望的候选者。不幸的是，由于对氧的高反应性，未取代的[n]三烯酮的合成及其边缘状态的直接观察一直是一项长期的挑战。然而，前驱体设计的最新进展使得能够对未取代的[3]-，[4]-和[5]三茂铀进行表面合成和表征。在此Minireview中，我们将重点介绍这个快速发展的领域的关键方面，从前体设计的原理到合成策略，以及表征一系列在表面合成的triangulene分子的范围。我们还将讨论挑战和未来方向。

更新日期：2020-02-11

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