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Subphthalocyanine encapsulated within MIL-101(Cr)-NH2 as a solar light photoredox catalyst for dehalogenation of α-haloacetophenones

AuthorsSantiago-Portillo, Andrea; Remiro-Buenamañana, Sonia; Navalón, Sergio; García Gómez, Hermenegildo
Issue Date12-Nov-2019
PublisherRoyal Society of Chemistry (UK)
CitationDalton Transactions 48: 17735-17740 (2019)
AbstractSubphthalocyanine has been incorporated into a robust metal-organic framework having amino groups as binding sites. The resulting SubPc@MIL-101(Cr)-NH 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. The resulting SubPc@MIL-101(Cr)-NH 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.
Publisher version (URL)http://dx.doi.org/10.1039/c9dt04004h
Identifiersdoi: 10.1039/c9dt04004h
issn: 1477-9234
Appears in Collections:(ITQ) Artículos
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