
Kekulene - Wikipedia
Kekulene is a polycyclic aromatic hydrocarbon which consists of 12 fused benzene rings arranged in a circle. It is therefore classified as a [12]- circulene with the chemical formula C 48 H 24. It was first synthesized in 1978, [2] and was named in honor of August Kekulé, the discoverer of the structure of the benzene molecule.
凯库勒烯 - 百度百科
凯库勒烯(Kekulene)是一种多环芳香烃,化学式C48H24,首次合成于1978年,以提出苯环结构的德国化学家凯库勒命名。 凯库勒烯结构高度对称,不溶于一般有机溶剂。
Expanded Kekulenes | Journal of the American Chemical Society
2021年8月20日 · Herein, we report the facile preparation of a series of edge-extended kekulenes by bismuth (III) triflate-catalyzed cyclization of vinyl ethers from the properly designed macrocyclic precursors. Their molecular structures were confirmed by X-ray crystallographic analysis and NMR spectroscopy.
凯库勒烯 - 维基百科,自由的百科全书
凯库勒烯(英語: Kekulene )是一种多环芳香烃, 化学式C 48 H 24 ,首次合成于1978年, [1] 以提出苯环结构的德国化学家奥古斯特·凯库勒命名。 凯库勒烯结构高度对称,不溶于一般 有机溶剂 。
Revisiting Kekulene: Synthesis and Single-Molecule Imaging
2019年9月17日 · Thus, here we present our contribution to the study of kekulene through three different yet related achievements: the improved synthesis of 1 by means of the aryne-mediated construction of a key synthetic intermediate, the single-molecule imaging of this fascinating cycloarene by ultra-high-resolution atomic force microscopy (AFM), and a ...
Kekulene | C48H24 | CID 5460755 - PubChem
2021年10月14日 · Kekulene | C48H24 | CID 5460755 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
凱庫勒烯 - 維基百科,自由的百科全書
凱庫勒烯(英語: Kekulene )是一種多環芳香烴, 化學式C 48 H 24 ,首次合成於1978年, [1] 以提出苯環結構的德國化學家奧古斯特·凱庫勒命名。 凱庫勒烯結構高度對稱,不溶於一般 有機溶劑 。
Synthesis and assembly of extended quintulene - Nature
2020年8月7日 · Quintulene, a non-graphitic cycloarene with fivefold symmetry, has remained synthetically elusive due to its high molecular strain originating from its curved structure. Here we report the...
Kekulene: On-Surface Synthesis, Orbital Structure, and Aromatic ...
2020年11月13日 · A review. 'Kekulene' is a doughnut-like shaped polycyclic arom. hydrocarbon consisting of cyclically arrayed benzene rings. It has attracted a great deal of theor. interest because it is regarded as an ideal model to study conjugation circuits of π electrons, i.e. whether they delocalize locally in benzene rings or globally throughout the mol.
Non-alternant non-benzenoid kekulenes: the birth of a new kekulene …
2015年4月30日 · “Kekulene” is a doughnut-like shaped polycyclic aromatic hydrocarbon consisting of cyclically arrayed benzene rings. It has attracted a great deal of theoretical interest because it is regarded as an ideal model to study conjugation circuits of π electrons, i.e. whether they delocalize locally in benzene rin Challenges in Aromaticity: 150 ...