Sinha, Narayan and Jiménez, Juan-Ramon and Pfund, Björn and Piguet, Claude and Wenger, Oliver S.. (2021) A Near-Infrared-II Emissive Chromium(III) Complex. Angewandte Chemie International Edition, 60. pp. 23722-23728.
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Abstract
The combination of p-donating amido with p-
accepting pyridine coordination units in a tridentate chelate
ligand causes a strong nephelauxetic effect in a homoleptic CrIII
complex, which shifts its luminescence to the NIR-II spectral
range. Previously explored CrIII polypyridine complexes
typically emit between 727 and 778 nm (in the red to NIR-I
spectral region), and ligand design strategies have so far
concentrated on optimizing the ligand field strength. The
present work takes a fundamentally different approach and
focusses on increasing metal–ligand bond covalence to shift the
ruby-like 2E emission of CrIII to 1067 nm at 77 K.
accepting pyridine coordination units in a tridentate chelate
ligand causes a strong nephelauxetic effect in a homoleptic CrIII
complex, which shifts its luminescence to the NIR-II spectral
range. Previously explored CrIII polypyridine complexes
typically emit between 727 and 778 nm (in the red to NIR-I
spectral region), and ligand design strategies have so far
concentrated on optimizing the ligand field strength. The
present work takes a fundamentally different approach and
focusses on increasing metal–ligand bond covalence to shift the
ruby-like 2E emission of CrIII to 1067 nm at 77 K.
| Faculties and Departments: | 05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Wenger) |
|---|---|
| UniBasel Contributors: | Wenger, Oliver and Sinha, Narayan and Pfund, Björn |
| Item Type: | Article, refereed |
| Article Subtype: | Research Article |
| Publisher: | Wiley |
| ISSN: | 1433-7851 |
| e-ISSN: | 1521-3773 |
| Note: | Publication type according to Uni Basel Research Database: Journal article |
| Language: | English |
| Identification Number: |
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| edoc DOI: | |
| Last Modified: | 28 Jul 2022 08:16 |
| Deposited On: | 03 Nov 2021 14:27 |
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