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Journal articles
Lemniscular [16]Cycloparaphenylene A Radially Conjugated Figure-Eight Aromatic Molecule
Abstract : A cycloparaphenylene-based molecular lemniscate (CPPL) was obtained in a short synthesis involving masked p-phenylene equivalents. The strained figure-eight geometry of CPPL is sustained by the incorporated 9,9'-bicarbazole subunit, which also acts as a stereogenic element. The shape of the distorted [16]cycloparaphenylene nanohoop embedded in CPPL is accurately approximated with a Booth lemniscate. The structure of CPPL, investigated using NMR and Raman spectroscopic methods, revealed strain-dependent features, consistent with the variable curvature of the ring. The electronic and optical properties of CPPL combine features more characteristic of smaller cycloparaphenylenes, such as a reduced optical bandgap and red-shifted fluorescence. CPPL was resolved into enantiomers, which are configurationally stable and provide strong chiroptical responses, including circularly polarized luminescence.
Cited literature [41 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02120740
Contributor : Laurent Jonchère <>
Submitted on : Friday, June 21, 2019 - 3:37:28 PM
Last modification on : Wednesday, January 13, 2021 - 3:13:05 AM
Contributor : Laurent Jonchère <>
Submitted on : Friday, June 21, 2019 - 3:37:28 PM
Last modification on : Wednesday, January 13, 2021 - 3:13:05 AM
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Senthilkumar et al-2019-Lemnis...
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