Chiral cyclic [ <i>n</i> ]spirobifluorenylenes: carbon nanorings consisting of helically arranged quaterphenyl rods illustrating partial units of woven patterns
Kaige Zhu, Kosuke Kamochi, Takuya Kodama, Mamoru Tobisu, Toru Amaya
Abstract
. Characteristic spiroconjugation induced by multiple (≧3) bifluorenyl units, for example the even-odd effect of the number of units in the matching of the signs of the orbitals, was also indicated by DFT calculations.
Topics & Concepts
RodCarbon fibersMaterials scienceCrystallographyAsymmetric carbonChemistryComposite materialComposite numberOrganic chemistryOptically activePathologyMedicineAlternative medicineSynthesis and Properties of Aromatic CompoundsFullerene Chemistry and ApplicationsSurface Chemistry and Catalysis