Straightforward access to mono- and bis-cycloplatinated helicenes displaying circularly polarized phosphorescence by using crystallization resolution methods
- 6 January 2014
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Science
- Vol. 5 (5), 1915-1927
- https://doi.org/10.1039/c3sc53442a
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.Keywords
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