Substituent Effect on the Structure and Photophysical Properties of Phenylamino- and Pyridylamino-2,1,3-Benzothiadiazoles
作者:T. S. Sukhikh、R. M. Khisamov、D. A. Bashirov、L. M. Kovtunova、N. V. Kuratieva、S. N. Konchenko
DOI:10.1134/s0022476619100135
日期:2019.10
4-Bromo-7-phenylamino-2,1,3-benzothiadiazole (1) and 4-bromo-7-(3-pyridylamino)-2,1,3-benzo thiadiazole (2) are synthesized. Their crystal structure and photophysical properties are studied in comparison with the known phenylamino- and pyridylamino-derivatives of 2,1,3-benzothiadiazole. It is found that the aryl substituent and noncovalent interactions affect the absorption band positions and emission
合成了 4-溴-7-苯基氨基-2,1,3-苯并噻二唑 (1) 和 4-溴-7-(3-吡啶氨基)-2,1,3-苯并噻二唑 (2)。将它们的晶体结构和光物理性质与已知的 2,1,3-苯并噻二唑的苯基氨基和吡啶氨基衍生物进行比较研究。发现芳基取代基和非共价相互作用影响固体和溶液中的吸收带位置和发射。结果表明,在化合物 1 和 2 的多晶样品的机械作用下,发射带发生了低色移,这表明非共价分子间相互作用减弱。