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Stereospecific Synthesis and Photophysical Properties of Propeller-Shaped C 90 H 48 PAH.
- Source :
-
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2019 Dec 18; Vol. 25 (71), pp. 16241-16245. Date of Electronic Publication: 2019 Nov 19. - Publication Year :
- 2019
-
Abstract
- Herein, we have synthesized an enantiomerically pure propeller-shaped PAH, C <subscript>90</subscript> H <subscript>48</subscript> , possessing three [7]helicene and three [5]helicene subunits. This compound can be obtained in gram quantities in a straightforward manner. The photophysical and chiroptical properties were investigated using UV/Vis absorption and emission, optical rotation and circular dichroism spectroscopy, supported by DFT calculations. The nonlinear optical properties were investigated by two-photon absorption measurements using linearly and circularly polarized light. The extremely twisted structure and packing of the homochiral compound were investigated by single-crystal X-ray diffraction analysis.<br /> (© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)
Details
- Language :
- English
- ISSN :
- 1521-3765
- Volume :
- 25
- Issue :
- 71
- Database :
- MEDLINE
- Journal :
- Chemistry (Weinheim an der Bergstrasse, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 31742798
- Full Text :
- https://doi.org/10.1002/chem.201904962