Construction of Hydrocarbon Nanobelts
| Autor: | Mei-Xiang Wang, Shuo Tong, Tan-Hao Shi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science 010405 organic chemistry Hexagonal crystal system Supramolecular chemistry General Chemistry General Medicine Carbon nanotube Conjugated system Alkylation 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences law.invention Crystallography chemistry.chemical_compound Hydrocarbon chemistry law Intramolecular force Benzene |
| Zdroj: | Angewandte Chemie. 132:7774-7779 |
| ISSN: | 1521-3757 0044-8249 |
| Popis: | Linearly fused hydrocarbon nanobelts are a unique type of double-stranded macrocycles that would serve as not only the powerful hosts in supramolecular science but also the templates to grow zig-zag carbon nanotubes with defined diameters. Fully conjugated hydrocarbon nanobelts such as belt[n]arenes would also possess unique physical and chemical properties. Despite the importance, both fully conjugated and (partially) saturated hydrocarbon nanobelts remain largely unexplored because of the lack of cyclization methods. Reported here is the construction of nanometer sized H12 -belt[12]arenes based on the strategy to close up all fjords of resorcin[6]arene by means of six-fold intramolecular alkylation reactions of resorcin[6]arene derivatives. All resulting H12 -belt[12]arenes produce a very similar nanobelt core structure with six benzene rings and six boat 1,4-cyclohexadiene rings being alternately linear-fused to give a nearly equilateral hexagonal cylinder. The average long diagonal is around 1 nm and the height of the cylinder is about 0.3 nm. The acquired H12 -belt[12]arenes would be the potential precursors to various hydrocarbon nanobelts including fully conjugated belt[12]arenes. |
| Databáze: | OpenAIRE |
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