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Straightforward access to mono-and bis-cycloplatinated helicenes displaying circularly polarized phosphorescence by using crystallization resolution methods

Abstract : Enantiopure 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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Chengshuo Shen, Emmanuel Anger, Monika Srebro, Nicolas Vanthuyne, Kirandeep K. Deol, et al.. Straightforward access to mono-and bis-cycloplatinated helicenes displaying circularly polarized phosphorescence by using crystallization resolution methods. Chemical Science , The Royal Society of Chemistry, 2014, 5 (5), pp.1915-1927. ⟨10.1039/c3sc53442a⟩. ⟨hal-01063270⟩

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