Benzo[ a ][1,4]benzothia-zino[3,2- c ]phenothia-zine.

Autor: Bader MM; Department of Chemistry, Alfaisal, University, Riyadh 15333, Saudi Arabia., Pham PT; Penn State Scranton, Dunmore, Pennsylvania 18512, USA., Abu Khodair SS; Alfasial University, Riyadh, Saudi Arabia., Saleh MI; Department of Chemistry, The University of Jordan, Amman, Jordan.
Jazyk: angličtina
Zdroj: IUCrData [IUCrdata] 2024 Apr 30; Vol. 9 (Pt 4), pp. x240357. Date of Electronic Publication: 2024 Apr 30 (Print Publication: 2024).
DOI: 10.1107/S2414314624003572
Abstrakt: The title compound, C 22 H 12 N 2 S 2 , crystallizes in space group P 2 1 / c with four mol-ecules in the asymmetric unit. The heterocyclic mol-ecule is quasi-planar with a dihedral angle between the phenyl rings on the periphery of the mol-ecule 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 mol-ecule readily forms large crystals by sublimation and by slow evaporation from di-chloro-methane. The maximum absorbance in the UV-Vis spectrum is at 533 nm. Emission was measured upon excitation at 533 nm with a fluorescence λ max of 658 nm and cutoff of 900 nm.
(© Bader et al. 2024.)
Databáze: MEDLINE