Phenyl Extended Naphthalene-Based Covalent Triazine Frameworks as Versatile Metal- Free Heterogeneous Photocatalysts

[EN] Two new covalent triazines frameworks (CTFs) containing phenyl extended naphthalene units (with and without methoxy groups in the naphthalene core) are prepared by thermal and microwave activation. Both procedures yield similar chemical structure combining triazine acceptor units with donor aro...

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Detalhes bibliográficos
Autores: Fuerte-Díez, Beatriz, Valverde-Gónzález, Antonio, Pintado-Sierra, Mercedes, Díaz Morales, Urbano, Sánchez, Félix, Maya, Eva M., Iglesias, Marta
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/257990
Acesso em linha:http://hdl.handle.net/10261/257990
Access Level:acceso abierto
Palavra-chave:Naphthalene moieties
Metal-free photocatalyst
Covalent triazine frameworks
Extended conjugation
Microwave synthesis
Heterogeneous photocatalysis
Descrição
Resumo:[EN] Two new covalent triazines frameworks (CTFs) containing phenyl extended naphthalene units (with and without methoxy groups in the naphthalene core) are prepared by thermal and microwave activation. Both procedures yield similar chemical structure combining triazine acceptor units with donor aromatic groups, but they generate some differences in the morphology, structural organization, CO2 adsorption capacity, thermal and optical properties. Besides, the methoxy groups of the naphthalene core have also influence in some of these properties. The resulting phenyl extended naphthalene CTFs were efficiently utilized as metalfree heterogeneous photocatalyst for the selective aerobic oxidation of sulfides and the dehydrogenative cross-coupling reactions under visible-light irradiation, showing a high chemical stability.