Benzo[a][1,4]benzothiazino[3,2-c]phenothiazine
| Autor: | Mamoun M. Bader, Phuong-Truc T. Pham, Salma S. Abu Khodair, Maysoon I. Saleh |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | IUCrData, Vol 9, Iss 4, p x240357 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2414-3146 24143146 |
| DOI: | 10.1107/S2414314624003572 |
| Popis: | The title compound, C22H12N2S2, crystallizes in space group P21/c with four molecules in the asymmetric unit. The heterocyclic molecule is quasi-planar with a dihedral angle between the phenyl rings on the periphery of the molecule of 1.73 (19)°. Short H...S (2.92 Å) and C—H...π [2.836 (3) Å] contacts are observed in the crystal with shorted π–π stacking distances of 3.438 (3) Å along the b axis. Surprisingly, and unlike a closely related material, this molecule readily forms large crystals by sublimation and by slow evaporation from dichloromethane. The maximum absorbance in the UV-Vis spectrum is at 533 nm. Emission was measured upon excitation at 533 nm with a fluorescence λmax of 658 nm and cutoff of 900 nm. |
| Databáze: | Directory of Open Access Journals |
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