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Push-pull amino-nitro helicenes: synthesis, (chir)optical properties and self-assembly into thin films. | LitMetric

A series of regioisomeric push-pull amino-nitro [6]helicenes and a related [7]helicene derivative were prepared and their racemates resolved into enantiomers. Compared to the parent helicenes, they exhibit red-shifted UV-Vis spectra, pronounced dipole moments, altered chiroptical properties such as remarkable optical rotatory power, and can form nanocrystalline Langmuir-Blodgett films.

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http://dx.doi.org/10.1039/d2cc03892gDOI Listing

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