Mechano-Luminescent Behavior of a Pyridine-Containing Anthracene Derivative: Role of Aromatic Stacking Interactions
| Autor: | D. Kashyap, G. Gogoi, R. J. Sarma |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Anthracene
Materials science Oxalic acid Stacking 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Isonicotinic acid Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Pyridine General Materials Science Fourier transform infrared spectroscopy 0210 nano-technology Luminescence Benzoic acid |
| Zdroj: | Crystal Growth & Design. 18:4963-4970 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.8b00271 |
| Popis: | Isonicotinic acid anthracen-9-ylmethylene-hydrazide (AI), prepared from anthracene-9-carboxaldehyde and isoniazid, exhibited mechano-responsive luminescent emissions; for instance, gentle pressing of the weakly emissive crystals of AI (λem 527 nm) produced a yellow-green emissive material (λem 540 nm). Also, the mechano-luminescent emissions of AI could be easily switched “off” upon exposure to N,N-dimethylformamide. Contrastingly, under the same conditions, benzoic acid anthracen-9-ylmethylene-hydrazide (AB) did not exhibit mechano-responsive luminescent emissions. On the basis of UV–vis, fluorescence, Fourier transform infrared spectroscopy, and powder X-ray diffraction (XRD) studies, we suggest that mechano-luminescent emissions of AI were triggered by mechanically induced deformations in the lattice, which affected the intermolecular interactions and aromatic stacking behavior. Again, the mechano-luminescent emissions of AI were switched off when mixed with oxalic acid, although accompanied by a conco... |
| Databáze: | OpenAIRE |
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