本研究探讨了硫氧化对结构的影响,光学,[1]苯并噻吩并[3,2-b][1]苯并噻吩(BTBT)衍生物的电子性质,特别关注2,7-二溴BTBT(2,7-二Br-BTBT)及其氧化形式,5,5-二氧化物(2,7-diBr-BTBTTDO)和5,5,10,10-四氧化物(2,7-diBr-BTBTTO)。BTBT的溴化,然后用间氯过氧苯甲酸顺序氧化,以良好的收率获得了目标化合物。他们的特点是使用广泛的分析技术,包括不同的光谱方法,X射线分析,热分析,和量子化学计算。结果表明,硫氧化显著改变了晶体堆积,热稳定性,BTBT衍生物的光电性能。值得注意的是,氧化形式表现出增加的热稳定性和增强的发射性质,量子产率超过99%。这些发现为设计具有可调性能的先进有机半导体和荧光材料提供了有价值的见解,基于BTBT核心。
This study explores the impact of sulfur oxidation on the structural, optical, and electronic properties of [1]benzothieno[3,2-b][1]benzothiophene (BTBT) derivatives, specifically focusing on 2,7-dibromo BTBT (2,7-diBr-BTBT) and its oxidized forms, 5,5-dioxide (2,7-diBr-BTBTDO) and 5,5,10,10-tetraoxide (2,7-diBr-BTBTTO). The bromination of BTBT followed by sequential oxidation with m-chloroperoxybenzoic acid yielded the target compounds in good yields. They were characterized using a wide array of analytical techniques including different spectroscopic methods, X-ray analysis, thermal analysis, and quantum chemical calculations. The results revealed that sulfur oxidation significantly alters the crystal packing, thermal stability, and optoelectronic properties of BTBT derivatives. Notably, the oxidized forms exhibited increased thermal stability and enhanced emission properties, with quantum yields exceeding 99%. These findings provide valuable insights for designing advanced organic semiconductors and fluorescent materials with tunable properties, based on the BTBT core.