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A strategy to improve the performance of cerium(iii) photocatalysts.
- Source :
-
Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2019 Apr 02; Vol. 55 (28), pp. 4067-4070. - Publication Year :
- 2019
-
Abstract
- A structural modification strategy to improve the photocatalytic performance of a series of cerium(iii) bis(guanidinate) mono(amide) molecular luminophores was demonstrated. Reducing the steric bulkiness of the amide ligand gave rise to two categories of complexes with distinct photophysical and photochemical properties. A structural parameter, the amide cone angle (θ), was applied to differentiate the two categories. Complexes with smaller cone angles (θ < 156°, category B) exhibited more reducing potentials and faster electron-transfer rates than those of complexes with larger cone angles (θ > 173°, category A). And only complexes in the category B could achieve the photocatalytic phenylation of an aryl bromide. These results demonstrated that reducing the steric bulkiness of the amide ligand improved the performance of cerium(iii) bis(guanidinate) mono(amide) photocatalysts in a systematic manner.
Details
- Language :
- English
- ISSN :
- 1364-548X
- Volume :
- 55
- Issue :
- 28
- Database :
- MEDLINE
- Journal :
- Chemical communications (Cambridge, England)
- Publication Type :
- Academic Journal
- Accession number :
- 30882827
- Full Text :
- https://doi.org/10.1039/c9cc00282k