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Subphthalocyanine encapsulated within MIL-101(Cr)-NH2 as a solar light photoredox catalyst for dehalogenation of α-haloacetophenones.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 12/28/2019, Vol. 48 Issue 48, p17735-17740, 6p
- Publication Year :
- 2019
-
Abstract
- Subphthalocyanine has been incorporated into a robust metal–organic framework having amino groups as binding sites. The resulting SubPc@MIL-101(Cr)-NH<subscript>2</subscript> composite has a loading of 2 wt%. Adsorption of subphthalocyanine does not deteriorate host crystallinity, but decreases the surface area and porosity of MIL-101(Cr)-NH<subscript>2</subscript>. The resulting SubPc@MIL-101(Cr)-NH<subscript>2</subscript> composite exhibits a 575 nm absorption band responsible for the observed photoredox catalytic activity under simulated sunlight irradiation for hydrogenative dehalogenation of α-haloacetophenones and for the coupling of α-bromoacetophenone and styrene. The material undergoes a slight deactivation upon reuse. In comparison to the case of phthalocyanines the present study is one of the few cases showing the use of subphthalocyanine as a photoredox catalyst, with its activity derived from site isolation within the MOF cavities. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 48
- Issue :
- 48
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 140273552
- Full Text :
- https://doi.org/10.1039/c9dt04004h