1
|
Rojas-Luna R, Castillo-Rodríguez M, Ruiz JR, Jiménez-Sanchidrián C, Esquivel D, Romero-Salguero FJ. Ru- and Ir-complex decorated periodic mesoporous organosilicas as sensitizers for artificial photosynthesis. Dalton Trans 2022; 51:18708-18721. [PMID: 36448984 DOI: 10.1039/d2dt03147g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A versatile and facile strategy based on an inverse electron demand Diels-Alder reaction between 5-norbornen-2-yltriethoxysilane and a tetrazine derivative has been established for the synthesis of a new triethoxysilane precursor containing dipyridylpyridazine units. Such a precursor has been incorporated into the mesostructure of an ethylene-bridged periodic mesoporous organosilica (PMO) material through a one-pot synthesis via a co-condensation method. Upon attachment of Ru- and Ir-complexes to the pendant N-chelating heterocyclic ligands, the resulting decorated PMOs have acted as photosensitizers in artificial photosynthetic systems. The deposition of Pt on these PMOs has allowed us to obtain efficient photocatalytic materials for the hydrogen evolution reaction as a result of electron transfer from the light harvesting Ru- and Ir-complexes to the supported Pt nanoparticles through methyl viologen as an electron relay. They have exhibited total turnover number values of 573 and 846, respectively, under visible light irradiation. The role played by each component and the stability of the photocatalytic systems have been discussed. The present approach paves the way to the synthesis of different materials with coordination sites capable of forming surface complexes to be applied as sensitizers and catalysts.
Collapse
Affiliation(s)
- Raúl Rojas-Luna
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
| | - Miguel Castillo-Rodríguez
- Departamento de Física Aplicada, Radiología y Medicina Física, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain
| | - José R Ruiz
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
| | - César Jiménez-Sanchidrián
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
| | - Dolores Esquivel
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
| | - Francisco J Romero-Salguero
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.
| |
Collapse
|
2
|
Acikalin H, Panyam PKR, Shaikh AW, Wang D, Kousik SR, Atanasova P, Buchmeiser MR. Hydrosilylation of Alkynes Under Continuous Flow Using Polyurethane‐Based Monolithic Supports with Tailored Mesoporosity. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hande Acikalin
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 D‐70569 Stuttgart Germany
| | - Pradeep K. R. Panyam
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 D‐70569 Stuttgart Germany
| | - Abdul Wasif Shaikh
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 D‐70569 Stuttgart Germany
| | - Dongren Wang
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 D‐70569 Stuttgart Germany
| | - Shravan R. Kousik
- Institute of Materials Science University of Stuttgart Heisenbergstraße 3 D‐70569 Stuttgart Germany
| | - Petia Atanasova
- Institute of Materials Science University of Stuttgart Heisenbergstraße 3 D‐70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 D‐70569 Stuttgart Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf Körschtalstr. 26 D‐73770 Denkendorf Germany
| |
Collapse
|