| Publication Type |
Journal Article |
| Title |
Undecabenzo[7]superhelicene: A Helical Nanographene Ribbon as a Circularly Polarized Luminescence Emitter |
| Authors |
Carlos M. Cruz Silvia Castro-Fernandez Ermelinda Macoas Juan M. Cuerva Araceli G. Campana |
| Groups |
MPPM |
| Journal |
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION |
| Year |
2018 |
| Month |
November |
| Volume |
57 |
| Number |
45 |
| Pages |
14782-14786 |
| Abstract |
The synthesis and characterization of an enantiopure superhelicene nanographene is reported in which two saddle-shaped and one planar hexabenzocoronene (HBC) units are arranged in a helicoidal shape to form an undecabenzo[7]carbohelicene. The described compound is the first fully pi-extended [7]helicene. Racemic resolution of the helical nanographene permitted analysis of the chiroptical properties and revealed dissymmetry factors in the range of 2 x 10(-3) both in the absorption and in the emission measurements. Remarkably, non-linear photophysical analysis demonstrated a two-photon absorption cross-section of 870 GM at 800 nm and a perfect overlap between linear, non-linear, and chiral emissions. |
| DOI |
http://dx.doi.org/10.1002/anie.201808178 |
| ISBN |
|
| Publisher |
|
| Book Title |
|
| ISSN |
1433-7851 |
| EISSN |
1521-3773 |
| Conference Name |
|
| Bibtex ID |
ISI:000452234400015 |
| Observations |
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