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Royal Society of Chemistry, Chemical Science, 5(5), p. 1915

DOI: 10.1039/c3sc53442a

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

Journal article published in 2014 by Chengshuo Shen, Emmanuel Anger, Monika Srebro ORCID, Nicolas Vanthuyne, Kirandeep K. Deol, Truman D. Jefferson, Gilles Muller, J. A. Gareth Williams, Loic Toupet, Christian Roussel, Jochen Autschbach ORCID, Regis Reau, Régis Réau, Jeanne Crassous
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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.