Liu, Xunshan and Matej, Adam and Kratky, Tim and Mendieta-Moreno, Jesus and Guenther, Sebastian and Mutombo, Pingo and Decurtins, Silvio and Aschauer, Ulrich and Repp, Jascha and Jelinek, Pavel and Liu, Shi-Xia and Patera, Laerte L. (2022) Exploiting Cooperative Catalysis for the On-Surface Synthesis of Linear Heteroaromatic Polymers via Selective C-H Activation. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 61 (5). ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
Regiospecific C-H activation is a promising approach to achieve extended polymers with tailored structures. While a recent on-surface synthetic approach has enabled regioselective homocoupling of heteroaromatic molecules, only small oligomers have been achieved. Herein, selective C-H activation for dehydrogenative C-C couplings of hexaazatriphenylene by Scholl reaction is reported for the first time. By combining low-temperature scanning tunneling microscopy (STM) and atomic force microscopy (AFM), we revealed the formation of one-dimensional polymers with a double-chain structure. The details of the growth process are rationalized by density functional theory (DFT) calculations, pointing out a cooperative catalytic action of Na and Ag adatoms in steering the C-H selectivity for the polymerization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IRON(III) CHLORIDE; ALKALI; NETWORKS; Atomic force microscopy; Cooperative effects; On-surface synthesis; Scanning tunneling microscopy; Surface chemistry |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Jascha Repp |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Sep 2022 05:53 |
| Last Modified: | 08 Sep 2022 05:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47505 |
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