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Straightforward access to mono- and bis-cycloplatinated helicenes that display circularly polarized phosphorescence 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.

SUBMITTER: Shen C

PROVIDER: S-EPMC4026200 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Straightforward access to mono- and bis-cycloplatinated helicenes that display circularly polarized phosphorescence using crystallization resolution methods.

Shen Chengshuo C Anger Emmanuel E Srebro Monika M Vanthuyne Nicolas N Deol Kirandeep K KK Jefferson Truman D TD Muller Gilles G Gareth Williams J A JA Toupet Loïc L Roussel Christian C Autschbach Jochen J Réau Régis R Crassous Jeanne J

Chemical science 20140501 5

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. ...[more]

PMID: 24855556

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