Punithakumari Ganesan, Prabakaran Arumugam, Chozhan Chinnakkannu Karikal, Pramila Ponnaiyan
Department of Chemistry, J.J College of Engineering and Technology, Tiruchirappalli-620009, Tamilnadu, India.
Department of Physics, K. Ramakrishnan College of Engineering, Samayapuram, Trichy, 621112, India.
J Fluoresc. 2025 Jan 22. doi: 10.1007/s10895-024-04133-6.
By a simple condensation reaction, the receptor with anthraquinone moiety was synthesized and its sensing properties were explored in the anion sensing studies via colorimetric, UV-vis studies, fluorescence studies, and DFT calculations. The synthesized receptor senses both acetate and hypochlorite ions in DMSO medium. By the addition of all anions into the receptor the colour change was observed from pink to light purple colour for acetate ion and pink to light blue for hypochlorite ion. Furthermore, on relay recognition the acetate ion, when senses the Cr ion, it shows an excellent answer which changes its light purple color to pink which is same as the receptor, while no colour change was observed for other ions. Acetate and hypochlorite ions show very low detection limit with receptor as 1.8 × 10 M and 3.8 × 10 M respectively. By understanding the sensing mechanism, the DFT calculation was performed for both AcO and ClO ions. Additionally, receptors were effectively utilized in the preparation of optical sensors supported by silica gel for the detection of AcO and ClO ions. Real-life application was carried out by sensing AcO - in vinegar and ClO - ions in ala. Thus, the receptor proved itself as a potentially useful for real-life application and bio-imaging studies.
通过简单的缩合反应,合成了带有蒽醌部分的受体,并通过比色法、紫外可见光谱研究、荧光研究和密度泛函理论计算,在阴离子传感研究中探索了其传感特性。合成的受体在二甲基亚砜介质中能感应醋酸根离子和次氯酸根离子。向受体中加入所有阴离子时,观察到醋酸根离子使颜色从粉红色变为浅紫色,次氯酸根离子使颜色从粉红色变为浅蓝色。此外,在中继识别醋酸根离子时,当它感应到铬离子时,会给出出色的响应,颜色从浅紫色变为与受体相同的粉红色,而其他离子则未观察到颜色变化。醋酸根离子和次氯酸根离子与受体的检测限分别非常低,为1.8×10⁻⁶ M和3.8×10⁻⁶ M。通过了解传感机制,对醋酸根离子和次氯酸根离子都进行了密度泛函理论计算。此外,受体被有效地用于制备由硅胶支撑的光学传感器,用于检测醋酸根离子和次氯酸根离子。通过检测醋中的醋酸根离子和阿拉中的次氯酸根离子进行了实际应用。因此,该受体证明了自身在实际应用和生物成像研究中具有潜在用途。