[Science advances] 我室谢素原教授发表论文:Rational synthesis of an atomically precise carboncone under mild conditions

2019年09月14日

我室谢素原教授在 Science advances 上发表论文:Rational synthesis of an atomically precise carboncone under mild conditions

文章链接:https://advances.sciencemag.org/content/5/8/eaaw0982?_ga=2.80599890.419035980.1568429831-456884960.1568429831

摘要:

Carboncones, a special family of all-carbon allotropes, are predicted to have unique properties that distinguish them from fullerenes, carbon nanotubes, and graphenes. Owing to the absence of methods to synthesize atomically well-defined carboncones, however, experimental insight into the nature of pure carboncones has been inaccessible. Herein, we describe a facile synthesis of an atomically well-defined carboncone[1,2] (C70H20) and its soluble penta-mesityl derivative. Identified by x-ray crystallography, the carbon skeleton is a carboncone with the largest possible apex angle. Much of the structural strain is overcome in the final step of converting the bowl-shaped precursor into the rigid carboncone under mild reaction conditions. This work provides a research opportunity for investigations of atomically precise single-layered carboncones having even higher cone walls and/or smaller apex angles.