Synthetic Strategies of Carbon Nanobelts and Related Belt-shaped Polycyclic Aromatic Hydrocarbons.

  title={Synthetic Strategies of Carbon Nanobelts and Related Belt-shaped Polycyclic Aromatic Hydrocarbons.},
  author={Kwan Yin Cheung and Yasutomo Segawa and Kenichiro Itami},
The development of carbon nanobelts and related belt-shaped polycyclic aromatic hydrocarbons has gained momentum in recent years. This review focuses on the synthetic strategies used in constructing these aesthetically appealing molecular nanocarbons. Examples of carbon nanobelts and related belt-shaped polycyclic aromatic hydrocarbons reported in recent years as well as some representative synthetic attempts in earlier times are discussed. 
18 Citations
Selective Oxidation of Belt[4]arene[4]tropilidene and Its Application to Construct Hydrocarbon Belts of Truncated Cone Structure with Expand Cavity.
The selective transformations of belt[4]arene[ 4]tropilidene and their application in the construction of novel belts are reported and a diversity of unprecedented belts with various macrocyclic cavities are produced.
A theoretical study on the strain energy of helicene-containing carbon nanobelts.
It was found that the combined method of linear regression analysis and suitable homodesmotic reactions can successfully estimate the strain energies of various helicene-containing carbon nanobelts including previously synthesized chiral (18,12) carbon nanOBelts.
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A benchtop solution-phase synthesis of molecular nanographenes composed of two orthogonal dibenzo[fg,ij]phenanthro[9,10,1,2,3-pqrst]pentaphene moieties covalently connected through a tetrafluorobenzene ring reveals an electroactive character and a significant fluorescent behavior.
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This tutorial review discusses synthetic strategies towards aromatic belts, defined here as double-stranded conjugated macrocycles, such as [n]cyclacenes, [ n]cyclophenacene, Schlüter belt, and Vögtle belt, by their approach to the buildup of structural strain, which is the main obstacle in the preparation of these curved polyarenes.
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Synthesis of tetraphenyl-substituted [12]cycloparaphenylene: toward a rationally designed ultrashort carbon nanotube.
The first phenyl-substituted [n]cycloparaphenylene has been synthesized, a molecule that may lead to the homogeneous synthesis of armchair carbon nanotubes.
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Concise synthesis of 3D π-extended polyphenylene cylinders.
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