Solvent-free visible light photocatalytic oxidation processes mediated by transparent films of an imine-based organic polymer
Reaction between concentrated solutions of phenotiazine containing trialdehyde building block 4,4′,4′′-(10-phenothiazine-3,7,10-triyl)tribenzaldehyde and (1R,2R)-cyclohexane-1,2-diamine results in the formation of a yellow transparent film. Exhaustive characterization of this material indicates that...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/716424 |
| Acceso en línea: | http://hdl.handle.net/10486/716424 https://dx.doi.org/10.3390/catal11121426 |
| Access Level: | acceso abierto |
| Palabra clave: | Solvent-free photocatalysis sulfoxidation materials organic polymer Química |
| Sumario: | Reaction between concentrated solutions of phenotiazine containing trialdehyde building block 4,4′,4′′-(10-phenothiazine-3,7,10-triyl)tribenzaldehyde and (1R,2R)-cyclohexane-1,2-diamine results in the formation of a yellow transparent film. Exhaustive characterization of this material indicates that it is the result of the assembly of a linear polymer resulting from the linking of imine-based macrocycles. Phenotiazine units confer to this plastic the optical properties characteristic of photocatalytic materials. The transparency of the obtained material enabled the performance of solvent-free photocatalytic processes. This concept is illustrated by the oxidation of liquid organic sulfides, which can be performed in a recyclable manner. According to selective quenching experi-ments, such processes are the result of the energy transfer to oxygen molecule, generating singlet oxygen that is able to activate the sulfide molecules directly |
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