- PII
- 10.31857/S0023476124060159-1
- DOI
- 10.31857/S0023476124060159
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 69 / Issue number 6
- Pages
- 1044-1055
- Abstract
- This study presents an investigation into the crystallization and absorptive-fluorescent properties of linear conjugated molecules derived from 2,1,3-benzothiadiazole, specifically 4,7-bis(2,5-dimethyl-[1,1'-biphenyl]-4-yl)benzothiadiazole (Ph-Xy-BTD) and 4,7-bis(4'-hexyl-2,5-dimethyl-[1,1'-biphenyl]-4-yl)benzothiadiazole (Hex-Ph-Xy-BTD). The synthesis of a new derivative of Hex-Ph-Xy-BTD is described. It was found that the presence of terminal n-hexyl substituents in Hex-Ph-Xy-BTD leads to a lower melting point, increased solubility and has a positive effect on crystallization compared to Ph-Xy-BTD. Single crystals of Hex-Ph-Xy-BTD were grown from hexane solution, and their structure was elucidated using single-crystal X-ray diffraction, confirming a monoclinic system (space group P21/c, Z = 4). Absorption and fluorescence spectra were obtained and analyzed for solutions in tetrahydrofuran as well as for the crystals of Ph-Xy-BTD and Hex-Ph-Xy-BTD, alongside investigations of quantum yield and fluorescence lifetime.
- Keywords
- Date of publication
- 15.09.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 14
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