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Manganese(I) complexes with metal-to-ligand charge transfer luminescence and photoreactivity

Herr, Patrick and Kerzig, Christoph and Larsen, Christopher B. and Häussinger, Daniel and Wenger, Oliver S.. (2021) Manganese(I) complexes with metal-to-ligand charge transfer luminescence and photoreactivity. Nature Chemistry, 13 (10). pp. 956-962.

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Abstract

Precious metal complexes with the d(6) valence electron configuration often exhibit luminescent metal-to-ligand charge transfer (MLCT) excited states, which form the basis for many applications in lighting, sensing, solar cells and synthetic photochemistry. Iron(ii) has received much attention as a possible Earth-abundant alternative, but to date no iron(ii) complex has been reported to show MLCT emission upon continuous-wave excitation. Manganese(i) has the same electron configuration as that of iron(ii), but until now has typically been overlooked in the search for cheap MLCT luminophores. Here we report that isocyanide chelate ligands give access to air-stable manganese(i) complexes that exhibit MLCT luminescence in solution at room temperature. These compounds were successfully used as photosensitizers for energy- and electron-transfer reactions and were shown to promote the photoisomerization of trans-stilbene. The observable electron transfer photoreactivity occurred from the emissive MLCT state, whereas the triplet energy transfer photoreactivity originated from a ligand-centred (3)pi-pi* state.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Wenger)
05 Faculty of Science > Departement Chemie > Chemie > Nuclear Magnetic Resonance (Häussinger)
UniBasel Contributors:Wenger, Oliver and Herr, Patrick Sebastian and Kerzig, Christoph and Larsen, Christopher Bryan and Häussinger, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature
ISSN:1755-4330
e-ISSN:1755-4349
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:03 Nov 2021 15:48
Deposited On:03 Nov 2021 15:48

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