Zavala-Contreras Bruno, Santacruz-Ortega Hisila, Orozco-Valencia Angel Ulises, Inoue Motomichi, Ochoa Lara Karen, Navarro Rosa-Elena
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Blvd. Luis Encinas y Calle Rosales S/N, Hermosillo 83000, Sonora, Mexico.
ACS Omega. 2021 Mar 31;6(14):9381-9390. doi: 10.1021/acsomega.0c05554. eCollection 2021 Apr 13.
Two simple chemosensors with urea (L1) and thiourea (L2) groups were synthesized and studied by different spectroscopic techniques. Both receptors can sense acetate (Ac), dihydrogen phosphate (HPO ), and fluoride (F) anions, accompanied by changes in UV-vis and H NMR spectra, and an optical response is observed as a color change of the solutions due to deprotonation and hydrogen-bonding processes. Also, L1 and L2 were supported on TentaGel resins (R1 and R2), and their fluoride-sensing properties in DMSO and water solutions were studied. Interestingly, R2 can sense fluoride ions in sample solutions of 100% water.
合成了两种分别带有脲基（L1）和硫脲基（L2）的简单化学传感器，并通过不同的光谱技术对其进行了研究。两种受体都能识别醋酸根（Ac）、磷酸二氢根（HPO）和氟离子（F），同时紫外可见光谱和氢核磁共振谱会发生变化，并且由于去质子化和氢键作用过程，溶液颜色改变，从而观察到光学响应。此外，L1和L2负载在TentaGel树脂上（R1和R2），并研究了它们在二甲基亚砜和水溶液中的氟离子传感特性。有趣的是，R2能在100%水的样品溶液中识别氟离子。
