Modulation of Crystallinity and Optical Properties in Composite Materials Combining Iron Oxide Nanoparticles and Dye-Containing Covalent Organic Frameworks
Please always quote using this URN: urn:nbn:de:bvb:20-opus-231480
- Two series of organic–inorganic composite materials were synthesized through solvothermal imine condensation between diketopyrrolopyrrole dialdehyde DPP-1 and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAPP) in the presence of varying amounts of either amino- or carboxy-functionalized superparamagnetic iron oxide nanoparticles (FeO). Whereas high FeO loading induced cross-linking of the inorganic nanoparticles by amorphous imine polymers, a lower FeO content resulted in the formation of crystalline covalent organic framework domains. AllTwo series of organic–inorganic composite materials were synthesized through solvothermal imine condensation between diketopyrrolopyrrole dialdehyde DPP-1 and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAPP) in the presence of varying amounts of either amino- or carboxy-functionalized superparamagnetic iron oxide nanoparticles (FeO). Whereas high FeO loading induced cross-linking of the inorganic nanoparticles by amorphous imine polymers, a lower FeO content resulted in the formation of crystalline covalent organic framework domains. All hybrid materials were analyzed by magnetization measurements, powder X-ray diffraction, electron microscopy, IR, and UV/Vis absorption spectroscopy. Crystallinity, chromophore stacking, and visible absorption features are directly correlated to the mass fraction of the components, thus allowing for a fine-tuning of materials properties.…
Author: | Roberto Sanchez-Naya, Vladimir Stepanenko, Karl Mandel, Florian Beuerle |
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URN: | urn:nbn:de:bvb:20-opus-231480 |
Document Type: | Journal article |
Faculties: | Fakultät für Chemie und Pharmazie / Institut für Organische Chemie |
Language: | English |
Parent Title (English): | Organic Materials |
Year of Completion: | 2021 |
Volume: | 3 |
Pagenumber: | 17-24 |
Source: | Organic Materials 2021, 3, 17–24. DOI: 10.1055/s-0040-1722655 |
DOI: | https://doi.org/10.1055/s-0040-1722655 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 547 Organische Chemie |
Tag: | covalent organic frameworks; diketopyrrolopyrroles; hybrid materials; iron oxide nanoparticles; porphyrins; superparamagnetism |
Release Date: | 2021/04/22 |
Collections: | Open-Access-Publikationsfonds / Förderzeitraum 2020 |
Licence (German): | CC BY-NC-ND: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell, Keine Bearbeitungen 4.0 International |