Straightforward access to mono-and bis-cycloplatinated helicenes displaying circularly polarized phosphorescence by using crystallization resolution methods
- Shen, Chengshuo
- Anger, Emmanuel
- Srebro, Monika
- Vanthuyne, Nicolas
- Deol, Kirandeep K.
- Jefferson, Truman D.
- Muller, Gilles
- Williams, J. A. Gareth
- Toupet, Loic
- Roussel, Christian
- Autschbach, Jochen
- Reau, Regis
- Crassous, Jeanne
DOIAbstract
International audienceEnantiopure mono-cycloplatinated-[8] helicene and bis-cycloplatinated-[6] helicene derivatives were prepared through column chromatography combined with crystallization of diastereomeric complexes using a chiral ancillary sulfoxide ligand. The UV-visible spectra, circular dichroism, molar rotations, and (circularly polarized) luminescence activity of these new helical complexes have been examined in detail and analysed with the help of first-principles quantum-chemical calculations
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