The π-extension of carbon nanorings towards ultrashort carbon nanotubes (CNTs) is a great challenge for synthetic chemists. Herein, we report the synthesis, characterization, and properties of a nanographene-embedded carbon nanoring (NECR) by a direct zipper method. In this approach, a long linear phenyl chain is fused onto the CPP backbone by a simple Scholl reaction, similar to zipping two pieces of fabric together. Its photophysical properties were studied by UV-vis and photoluminescence spectroscopy. The potential application of NECR in electron-transport devices were further investigated.

中文翻译：

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使用拉链法直接π共轭碳纳米环


碳纳米环向超短碳纳米管 （CNT） 的π延伸对合成化学家来说是一个巨大的挑战。在此，我们报道了通过直接拉链方法嵌入纳米石墨烯的碳纳米环 （NECR） 的合成、表征和性质。在这种方法中，一条长线性苯基链通过简单的 Scholl 反应融合到 CPP 主链上，类似于将两块织物拉链在一起。通过紫外-可见分光光和光致发光光谱研究了其光物理性质。进一步研究了 NECR 在电子传输器件中的潜在应用。