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Red edge effect and chromoselective photocatalysis with amorphous covalent triazine-based frameworks

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Abstract
Chromoselective photocatalysis offers an intriguing opportunity to enable a specific reaction pathway out of a potentially possible multiplicity for a given substrate by using a sensitizer that converts the energy of incident photon into the redox potential of the corresponding magnitude. Several sensitizers possessing different discrete redox potentials (high/low) upon excitation with photons of specific wavelength (short/long) have been reported. Herein, we report design of molecular structures of two-dimensional amorphous covalent triazine-based frameworks (CTFs) possessing intraband states close to the valence band with strong red edge effect (REE). REE enables generation of a continuum of excited sites characterized by their own redox potentials, with the magnitude proportional to the wavelength of incident photons. Separation of charge carriers in such materials depends strongly on the wavelength of incident light and is the primary parameter that defines efficacy of the materials in photocatalytic bromination of electron rich aromatic compounds. In dual Ni-photocatalysis, excitation of electrons from the intraband states to the conduction band of the CTF with 625 nm photons enables selective formation of C-N cross-coupling products from arylhalides and pyrrolidine, while an undesirable dehalogenation process is completely suppressed. Chromoselective catalysis offers an intriguing opportunity to enable a specific reaction pathway in photocatalysis. Here, the authors look into the ability of covalent triazine frameworks to enable the synthesis of different organic compounds by using safer red light instead of harsh UV light.
Keywords
General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, WAVELENGTH-DEPENDENT FLUORESCENCE, VISIBLE-LIGHT, CARBON NITRIDE, STRUCTURAL DESIGN, ORGANIC FRAMEWORK, METAL-FREE, OXYGEN, OXIDATION, HALOGENATION, TEMPERATURE

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MLA
Zou, Yajun, et al. “Red Edge Effect and Chromoselective Photocatalysis with Amorphous Covalent Triazine-Based Frameworks.” NATURE COMMUNICATIONS, vol. 13, no. 1, 2022, doi:10.1038/s41467-022-29781-9.
APA
Zou, Y., Abednatanzi, S., Gohari Derakhshandeh, P., Mazzanti, S., Schüßlbauer, C. M., Cruz, D., … Savateev, A. (2022). Red edge effect and chromoselective photocatalysis with amorphous covalent triazine-based frameworks. NATURE COMMUNICATIONS, 13(1). https://doi.org/10.1038/s41467-022-29781-9
Chicago author-date
Zou, Yajun, Sara Abednatanzi, Parviz Gohari Derakhshandeh, Stefano Mazzanti, Christoph M. Schüßlbauer, Daniel Cruz, Pascal Van Der Voort, et al. 2022. “Red Edge Effect and Chromoselective Photocatalysis with Amorphous Covalent Triazine-Based Frameworks.” NATURE COMMUNICATIONS 13 (1). https://doi.org/10.1038/s41467-022-29781-9.
Chicago author-date (all authors)
Zou, Yajun, Sara Abednatanzi, Parviz Gohari Derakhshandeh, Stefano Mazzanti, Christoph M. Schüßlbauer, Daniel Cruz, Pascal Van Der Voort, Jian-Wen Shi, Markus Antonietti, Dirk M. Guldi, and Aleksandr Savateev. 2022. “Red Edge Effect and Chromoselective Photocatalysis with Amorphous Covalent Triazine-Based Frameworks.” NATURE COMMUNICATIONS 13 (1). doi:10.1038/s41467-022-29781-9.
Vancouver
1.
Zou Y, Abednatanzi S, Gohari Derakhshandeh P, Mazzanti S, Schüßlbauer CM, Cruz D, et al. Red edge effect and chromoselective photocatalysis with amorphous covalent triazine-based frameworks. NATURE COMMUNICATIONS. 2022;13(1).
IEEE
[1]
Y. Zou et al., “Red edge effect and chromoselective photocatalysis with amorphous covalent triazine-based frameworks,” NATURE COMMUNICATIONS, vol. 13, no. 1, 2022.
@article{8751905,
  abstract     = {{Chromoselective photocatalysis offers an intriguing opportunity to enable a specific reaction pathway out of a potentially possible multiplicity for a given substrate by using a sensitizer that converts the energy of incident photon into the redox potential of the corresponding magnitude. Several sensitizers possessing different discrete redox potentials (high/low) upon excitation with photons of specific wavelength (short/long) have been reported. Herein, we report design of molecular structures of two-dimensional amorphous covalent triazine-based frameworks (CTFs) possessing intraband states close to the valence band with strong red edge effect (REE). REE enables generation of a continuum of excited sites characterized by their own redox potentials, with the magnitude proportional to the wavelength of incident photons. Separation of charge carriers in such materials depends strongly on the wavelength of incident light and is the primary parameter that defines efficacy of the materials in photocatalytic bromination of electron rich aromatic compounds. In dual Ni-photocatalysis, excitation of electrons from the intraband states to the conduction band of the CTF with 625 nm photons enables selective formation of C-N cross-coupling products from arylhalides and pyrrolidine, while an undesirable dehalogenation process is completely suppressed.

Chromoselective catalysis offers an intriguing opportunity to enable a specific reaction pathway in photocatalysis. Here, the authors look into the ability of covalent triazine frameworks to enable the synthesis of different organic compounds by using safer red light instead of harsh UV light.}},
  articleno    = {{2171}},
  author       = {{Zou, Yajun and Abednatanzi, Sara and Gohari Derakhshandeh, Parviz and Mazzanti, Stefano and Schüßlbauer, Christoph M. and Cruz, Daniel and Van Der Voort, Pascal and Shi, Jian-Wen and Antonietti, Markus and Guldi, Dirk M. and Savateev, Aleksandr}},
  issn         = {{2041-1723}},
  journal      = {{NATURE COMMUNICATIONS}},
  keywords     = {{General Physics and Astronomy,General Biochemistry,Genetics and Molecular Biology,General Chemistry,WAVELENGTH-DEPENDENT FLUORESCENCE,VISIBLE-LIGHT,CARBON NITRIDE,STRUCTURAL DESIGN,ORGANIC FRAMEWORK,METAL-FREE,OXYGEN,OXIDATION,HALOGENATION,TEMPERATURE}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{13}},
  title        = {{Red edge effect and chromoselective photocatalysis with amorphous covalent triazine-based frameworks}},
  url          = {{http://doi.org/10.1038/s41467-022-29781-9}},
  volume       = {{13}},
  year         = {{2022}},
}

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