Metal Phthalocyanine−Fullerene Dyads: Promising Lamellar Columnar Donor−Acceptor Liquid Crystal Phases
| Autor: | Dominik Weh, Matthias Lehmann, Moritz Dechant, Emely Freytag |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electron density
Fullerene Materials science 010405 organic chemistry business.industry General Chemistry Electron 010402 general chemistry 01 natural sciences 0104 chemical sciences Metal chemistry.chemical_compound Crystallography chemistry Photovoltaics Liquid crystal visual_art ddc:540 visual_art.visual_art_medium Phthalocyanine Lamellar structure business |
| Popis: | Liquid crystal (LC) shape‐amphiphiles with a disc tethered to a fullerene have been intensely studied for the application in photovoltaics, and helical nanosegregation of C\(_{60}\) has been claimed around the π‐stacking disks based on X‐ray results. The most promising materials reported to date have been resynthesized and studied comprehensively by XRS, density measurements, modelling, and electron density reconstruction. In contrast to previous reports, the results indicate that metal phthalocyanine−fullerene mesogens pack in lamellar columnar phases with p2gm symmetry. Fullerenes assemble in layers and are flanked by phthalocyanine columns, thus explaining the balanced charge carrier mobility of electrons and holes. Such variable donor−acceptor structures are promising for organic electronic applications. |
| Databáze: | OpenAIRE |
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