Here, for the first time, we report synthesis of 1,10-phenanthroline-5,6-diimine (Phendiimine) based on an acid catalysed SN₂ reaction of 1,10-phenanthroline-5,6-dione and 2-picolylamine in EtOH as a solvent. The synthesized Phendiimine molecule showed excellent photo-sensitivity against visible light, together with photoluminescence in both water and ethanol and also, it showed electrochemical activity with Fe electrode in ethanol and H₂SO₄ solution. Tauc plot also showed Phendiimine is a direct band-gap semiconductor. The hot-point probe test also showed that it is a n-type semiconductor. The UV–vis. absorption maximum shift in two solvents (water and ethanol) demonstrates the solvatochromism behavior of the molecule. The practical significance of this work and its guiding implication for future related research can be outlined as follows. Based on the results obtained, it appears that the Phendiimine molecule could revolutionize the medical field, potentially in the design of artificial eyes, increasing the yield of photovoltaic cells through enhanced heat transfer, improving computers and industrial photo-cooling systems, serving as photo-controller in place of piezoelectric devices, functioning as electronic opt couplers, controlling remote lasers, changing convection in photothermal heaters, designing miniaturized real photo-stimulated motors, creating photo or thermal switches through spin crossover complexes, developing electronic light-dependent resistance (LDR) devices, constructing X-ray and gamma-ray detectors, designing intelligent clothing, creating photo dynamic tumour therapy (PDT) complexes, singlet fission materials in solar cells and more.

在此，我们首次报道了基于 1,10-菲咯啉-5,6-二亚胺 (Phendiimine) 的酸催化 SN ₂反应合成 1,10-菲咯啉-5,6-二亚胺(Phendiimine)。乙醇作为溶剂。合成的苯二亚胺分子对可见光表现出优异的光敏性，在水和乙醇中均表现出光致发光性，并且在乙醇和H ₂ SO ₄溶液中与Fe电极表现出电化学活性。 Tauc 图还显示苯丙亚胺是一种直接带隙半导体。热点探针测试也表明它是n型半导体。紫外可见分光光度计。两种溶剂（水和乙醇）中的吸收最大位移表明了分子的溶剂化变色行为。本文工作的现实意义及其对未来相关研究的指导意义可概括如下。根据所获得的结果，苯丙二胺分子似乎可以彻底改变医学领域，可能在人造眼的设计中，通过增强传热来提高光伏电池的产量，改进计算机和工业光冷却系统，充当光致变色系统。控制器代替压电器件，用作电子光耦合器，控制远程激光器，改变光热加热器中的对流，设计微型真实光刺激电机，通过自旋交叉复合体创建光或热开关，开发电子光敏电阻（LDR）设备、构建 X 射线和伽马射线探测器、设计智能服装、创建光动力肿瘤治疗 (PDT) 复合物、太阳能电池中的单线态裂变材料等等。