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Updated: Jun 25, 2026

Hydrolysis of a Ni-Schiff-Base Complex Using Conditions Suitable for Retention of Acid-labile Protecting Groups
Published on: April 6, 2017
The anion recognition properties of Schiff base or its reductive system based on 2,2'-bipyridine derivatives
1Xinxiang Medical University, Xinxiang Henan 453003, People's Republic of China. shangxuefang@mail.nankai.edu.cn
Abstract:
Two novel artificial receptors, 2,2'-bipyridine derivatives containing phenol group, have been designed and synthesized. The interaction of the receptors containing Schiff base or its reductive system with biologically important anions was determined by UV-vis and (1)H NMR titration experiments. Results indicate that receptors 1 and 2 show the strong binding ability for dihydrogen phosphate (H(2)PO(4)(-)), fluoride (F(-)), acetate (AcO(-)) and almost no binding ability for chloride (Cl(-)), bromide (Br(-)), iodide (I(-)). At the same time, the strongest binding ability of receptor 1 for H(2)PO(4)(-) among studied anions is not influenced by the existence of other anions; as well as receptor 2 for F(-). In addition, the binding ability of receptor 1 (Schiff base system) with various anions is stronger than that of receptor 2 (the reductive Schiff base system) due to the difference of electronic effect.
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