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[Studies on the anion recognition of N-aryl-N'-(4-ethyloxybenzoyl) thioureas derivatives by spectroscopy].
- Source :
-
Guang pu xue yu guang pu fen xi = Guang pu [Guang Pu Xue Yu Guang Pu Fen Xi] 2007 Jun; Vol. 27 (6), pp. 1172-5. - Publication Year :
- 2007
-
Abstract
- 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.
Details
- Language :
- Chinese
- ISSN :
- 1000-0593
- Volume :
- 27
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Guang pu xue yu guang pu fen xi = Guang pu
- Publication Type :
- Academic Journal
- Accession number :
- 17763785