Catalytic Oxidation of Thiols within Cavities of Phthalocyanine Network Polymers
| Autor: | Mutsumi Kimura, Rei Tamura, Nagao Kobayashi, Yoshiyuki Hattori, Takahiro Kawata |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Organic Chemistry Stacking chemistry.chemical_element 02 engineering and technology Zinc Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences Catalysis Inorganic Chemistry chemistry.chemical_compound chemistry Catalytic oxidation Polymer chemistry Materials Chemistry Phthalocyanine 0210 nano-technology Cobalt Linker |
| Zdroj: | Macromolecules. 50:7978-7983 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/acs.macromol.7b01713 |
| Popis: | Two three-dimensional (3D) network polymers (1 and 2), in which zinc(II) or cobalt(II) phthalocyanines were interconnected with twisted 9,9′-spirobifluorene linkers, were synthesized in order to investigate their performance as heterogeneous catalysts for thiol oxidations. From the spectroscopic analyses of two dimers (3 and 4) as component units of the network polymers, 3 connected with a short linker revealed electronic interaction between the two phthalocyanine units. Micrometer-sized polymer particles were formed due to the condensation of the twisted 9,9′-spirobifluorene linkers in the presence of zinc or cobalt ions. The dispersed solutions of 1 and 2 had sharp Q-bands, indicating the prevention of stacking among phthalocyanine moieties within the polymers. Powdered X-ray diffraction pattern and N2 adsorption–desorption analyses suggested that 1 created small and rigid cavities as compared with 2 through the regular spatially arrangement of the phthalocyanine moieties in the 3D networks. The photoca... |
| Databáze: | OpenAIRE |
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