The design and synthesis of new conjugated luminescent molecules have attracted the attention of researchers because of their various applications, especially in the field of optoelectronic devices. Most of the applications were mainly based on the intramolecular charge transfer (ICT). For this purpose, we designed and synthesized a series of new donor–acceptor based disc type molecules i.e. 2,4,6-tris(4-(alkyloxy)phenyl)pyridines carrying variable alkoxy chains [i.e. n = 2, 4, 6, 8, 10, 12, 14, 16]. Further, the structures of all the synthesized compounds were confirmed by using ATR-IR, ¹H-NMR, ¹³C-NMR, and ESI–MS analysis. Moreover, the photophysical property study indicated that all the molecules are blue light emitting materials, however the change of alkoxy chain length in phenyl arms does not affect their absorption, emission, and energy levels. Besides, the thermal study revealed that core is stable up to 350 °C. Also, the DFT study showed that the photo induced electron transfer caused by HOMO–LUMO excitation in the studied molecules. Therefore, all the molecules have potential applications in optoelectronic applications.

新型共轭发光分子的设计与合成由于其应用广泛，特别是在光电器件领域受到了研究人员的关注。大多数应用主要基于分子内电荷转移（ICT）。为此，我们设计并合成了一系列新的基于供体-受体的圆盘型分子，即携带可变烷氧基链的2,4,6-三（4-（烷氧基）苯基）吡啶 [即n = 2, 4, 6, 8、10、12、14、16]。此外，所有合成化合物的结构均通过 ATR-IR、¹ H-NMR、¹³C-NMR 和 ESI-MS 分析。此外，光物理性质研究表明，所有分子均为蓝光发光材料，但苯基臂中烷氧基链长的变化不影响其吸收、发射和能级。此外，热研究表明核心在高达 350°C 的温度下是稳定的。此外，DFT 研究表明，在所研究的分子中，由 HOMO-LUMO 激发引起的光诱导电子转移。因此，所有分子在光电应用中都有潜在的应用。