An Efficient Novel Acetate Anion Receptor based on Isatin
: Su HY, Li JW, Lin H, Lin HK
Publisher: SOC BRASILEIRA QUIMICA
: 2010
: Journal of the Brazilian Chemical Society
: JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
: J BRAZIL CHEM SOC
: 21
: 3
: 541
: 545
: 5
: 0103-5053
DOI: https://doi.org/10.1590/S0103-50532010000300021
An anion recognition receptor, a kind of thiourea derivative, was designed and synthesized by combining indoline-2,3-dione and 1,3-diaminothiourea. The anion recognition can be easily monitored by anion complexation induced changes in UV-vis absorption spectra. In particular, the binding ratio between the receptor and fluoride is 1:2 but in the case of dihydrogenphosphate and acetate are 1:1. Moreover, the affinity constants revealed that the receptor can recognize acetate well. Finally, H-1 NMR experiments were carried out to explore the nature of interaction between this new receptor and acetate.