Riemann surfaces inspired chemists to design and synthesize such multidimensional curved carbon architectures. It has been predicted that carbon nanosolenoid materials with Riemann surfaces have unique structures and novel physical properties. Here we report the first synthesis of a nitrogen-doped carbon nanosolenoid (N-CNS) using bottom-up approach with a well-defined structure. N-CNS was obtained by a rational Suzuki polymerization, followed by oxidative cyclodehydrogenation. The successful synthesis of N-CNS was fully characterized by GPC, FTIR, solid-state ¹³C NMR and Raman techniques. The intrinsic single-strand molecular structures of N-CNS helices can be clearly resolved using low-dose integrated differential phase contrast scanning transmission electron microscopy (iDPC-STEM) technique. Possessing unique structural and physical properties, this long π-extended polymer N-CNS can provide new insight towards bottom-up syntheses of curved nanoribbons and potential applications as a metal-free photocatalyst for visible-light-driven H₂ evolution and highly efficient photocatalyst for photoredox organic transformations.

黎曼曲面启发化学家设计和合成这种多维弯曲碳结构。据预测，具有黎曼表面的碳纳米螺线管材料具有独特的结构和新颖的物理性质。在这里，我们报告了使用自下而上的方法首次合成具有明确结构的氮掺杂碳纳米螺线管（N-CNS ）。N-CNS是通过合理的Suzuki聚合，然后氧化环化脱氢得到的。N-CNS的成功合成通过 GPC、FTIR、固态¹³ C NMR 和拉曼技术进行了充分表征。使用低剂量集成微分相差扫描透射电子显微镜 (iDPC-STEM) 技术可以清楚地解析N-CNS螺旋的固有单链分子结构。这种长π延伸聚合物N-CNS具有独特的结构和物理性质，可以为弯曲纳米带的自下而上合成以及作为可见光驱动H ₂析出的无金属光催化剂和高效光催化剂的潜在应用提供新的见解。用于光氧化还原有机转化。