Physics:Carbon nanohoop
Carbon nanohoops are a class of molecules consisting of aromatic sections curved out of planarity by the inherent cyclic geometry of the molecule. This class of molecules came into existence with the synthesis of cycloparaphenylenes[1] by Ramesh Jasti in the lab of Carolyn Bertozzi and since then has been expanded into cyclonaphthylenes,[2] cyclochrysenylenes,[3] and even cyclohexabenzocoronenylenes.[4] Moreover, several nanohoops containing such antiaromatic units as dibenzo[a,e]pentalene[5] and pyrrolo[3,2-b]pyrrole are reported.[6] Carbon nanohoops often map on to a certain chirality of carbon nanotube.[7][8] If the diameter is adequate, these molecules can host a fullerene. For example, [10]cycloparaphenylene can host a C60 fullerene.
References
- ↑ Jasti, Ramesh; Bhattacharjee, Joydeep; Neaton, Jeffrey B.; Bertozzi, Carolyn R. (2008). "Synthesis, Characterization, and Theory of [9]-, [12]-, and [18]Cycloparaphenylene: Carbon Nanohoop Structures". Journal of the American Chemical Society 130 (52): 17646–17647. doi:10.1021/ja807126u. PMID 19055403.
- ↑ Okada, Keishu; Yagi, Akiko; Segawa, Yasutomo; Itami, Kenichiro (2017). "Synthesis and properties of [8]-, [10]-, [12]-, and [16]cyclo-1,4-naphthylenes". Chemical Science 8 (1): 661–667. doi:10.1039/C6SC04048A. PMID 28451214.
- ↑ Sun, Zhe; Suenaga, Takuya; Sarkar, Parantap; Sato, Sota; Kotani, Motoko; Isobe, Hiroyuki (2016). "Stereoisomerism, crystal structures, and dynamics of belt-shaped cyclonaphthylenes". Proceedings of the National Academy of Sciences 113 (29): 8109–8114. doi:10.1073/pnas.1606530113. PMID 27357686. PMC 4961134. Bibcode: 2016PNAS..113.8109S. https://www.pnas.org/content/pnas/113/29/8109.full.pdf.
- ↑ Nakagawa, Yuta; Sekiguchi, Ryuta; Kawakami, Jun; Ito, Shunji (2019). "Preparation of a large-sized highly flexible carbon nanohoop". Organic & Biomolecular Chemistry 17 (28): 6843–6853. doi:10.1039/C9OB00763F. PMID 31263811.
- ↑ Wössner, Jan; Wassy, Daniel; Weber, Andrej; Bovenkerk, Marcel; Hermann, Mathias; Schmidt, Maximilian; Esser, Birgit (2021). "[n]Cyclodibenzopentalenes as Antiaromatic Curved Nanocarbons with High Strain and Strong Fullerene Binding". Journal of the American Chemical Society 143 (31): 12244–12252. doi:10.1021/jacs.1c05251. PMID 34324813.
- ↑ George, Gibu; Stasyuk, Olga; Voityuk, Alexander; Stasyuk, Anton; Solà, Miquel (2023). "Aromaticity controls the excited-state properties of host-guest complexes of nanohoops". Nanoscale 15 (3): 1221–1229. doi:10.1039/D2NR04037A. PMID 36537223.
- ↑ "Möbius Carbon Nanobelt: A Möbius Strip Constructed Solely of Carbon Atoms". 28 May 2022. https://scitechdaily.com/mobius-carbon-nanobelt-a-mobius-strip-constructed-solely-of-carbon-atoms/.
- ↑ Segawa, Yasutomo; Watanabe, Tsugunori; Yamanoue, Kotono; Kuwayama, Motonobu; Watanabe, Kosuke; Pirillo, Jenny; Hijikata, Yuh; Itami, Kenichiro (2022). "Synthesis of a Möbius carbon nanobelt". Nature Synthesis 1 (7): 535–541. doi:10.1038/s44160-022-00075-8.
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