Mateo, Luis M. and Hung, Tzu-Chao and Rank, Andreas and Spachtholz, Raffael and Giselbrecht, Felix and Schön, Jonas and Gross, Leo and Repp, Jascha and Pena, Diego (2026) Combined In-Solution and On-Surface Synthesis of a Fully Fused Cross-Shaped Phthalocyanine Pentamer. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 65 (11). ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
Phthalocyanines (Pcs) are a class of technologically relevant tetrapyrrolic macrocycles that offer rich photophysical properties as well as excellent tunability by means of chemical functionalization. Among such functionalization strategies, the synthesis of multinuclear, fully fused Pcs - adjacent macrocycles seamlessly fused through a shared aromatic ring into a continuous pi-system - is particularly appealing for the preparation of new, exotic, atomically precise carbon frameworks. However, the notoriously low solubility of Pcs typically impedes the synthesis of oligomers beyond trimers. In addition, the positional control for specific units in large low-symmetry frameworks is particularly challenging. In this work, taking advantage of the benefits of on-surface synthesis under ultra-high vacuum (UHV) conditions, we present a strategy that allows the on-surface synthesis of cross-shaped Pc pentamers. This pentamer, which bears two different metal ions with pre-defined positional control, shows a small transport gap of 1.15 eV on Au(111).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUBPHTHALOCYANINES; SPECTROSCOPY; DERIVATIVES; CHEMISTRY; Cyclotetramerization; In-solution synthesis; On-surface synthesis; Phthalocyanine; Scanning probe microscopy |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Group Jascha Repp |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Sep 2026 05:00 |
| Last Modified: | 23 Sep 2026 05:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/67081 |
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