Hu Jing-Han, Xu Wei-Xia, Wei Tai-Bao
School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Jun;27(6):1172-5.
The interactions of N-aryl-N'-(4-ethyloxybenzoyl) thioureas derivatives and anions such as F-, Cl-, Br-, I-, CH3COO-, H2POT4-, HSO4- and NO3- in DMSO were investigated by UV-Vis and 1H NMR spectroscopy. The results showed that hydrogen--bonding complexes were formed between receptors and the three anions such as F-, CH3COO- and H2PO4-, and the solutions turned light yellow from colorlessness, but there had no evident binding with Cl-, Br-, I-, HSO4- and NO3-. It was regular that the two receptors had different binding ability with F-, CH3COO- and H2PO4-. For the same anion, the association constants followed the trend: receptor 1a > receptor 1b. The UV-Vis data indicated that a 1 : 1 stoichiometry complex was formed.
通过紫外可见光谱和核磁共振氢谱研究了N-芳基-N'-(4-乙氧基苯甲酰基)硫脲衍生物与二甲基亚砜中的F-、Cl-、Br-、I-、CH3COO-、H2POT4-、HSO4-和NO3-等阴离子的相互作用。结果表明，受体与F-、CH3COO-和H2PO4-这三种阴离子之间形成了氢键复合物，溶液由无色变为浅黄色，但与Cl-、Br-、I-、HSO4-和NO3-没有明显的结合。两个受体对F-、CH3COO-和H2PO4-具有不同的结合能力，这是有规律的。对于相同的阴离子，缔合常数遵循以下趋势：受体1a > 受体1b。紫外可见光谱数据表明形成了1:1化学计量比的配合物。
