Supertwistacene: A Helical Graphene Nanoribbon
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https://figshare.com/articles/dataset/Supertwistacene_A_Helical_Graphene_Nanoribbon/12971774
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资源简介：
This work describes
a synthetic chiral graphene nanoribbon, named
supertwistacene 1. It has four superbenzene (HBC) units
linearly fused in a helical manner. The structure of 1, 4.3 nm in length, with an end-to-end twist of 117°, was confirmed
by single-crystal X-ray diffraction. In contrast to various twistacene
compounds and their analogues, 1 has a very stable configuration.
It resists thermal isomerization even when being heated at 200 °C
for 16 h. Enantiopure 1 obtained by chiral HPLC shows
distinct CD signals in a broad spectral range until 600 nm. In addition,
two smaller congeners of 1, the trimer 2 and the dimer 3, were also prepared and systematically
investigated. Combining theoretical and experimental studies on 1–3 presents a big picture on their (chir)optical
and electronic characteristics.
创建时间：
2020-09-09
