科研之友
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摘要
The synthesis and complexing properties of p-aminoazobenzene-derived mono-, bis-, and trisamides were described. Ligands 3 and 4 bind anions, including fluorides, chlorides, bromides, acetates, benzoates, dihydrogen phosphates, hydrogen sulfates, and p-toluenesulfonates, in chloroform forming 1 : 1 complexes. The highest value of stability constant was evaluated for the 4-F- complex (log K = 5.63 +/- 0.21). On the basis of H-1 NMR, and FTIR spectroscopy, the possible nature of the ligand-anion interactions was proposed. The E reversible arrow Z isomerization process of tripodal amide 4 in chloroform was studied. The effect of anions on Z to E thermal back isomerization was investigated.
- 出版日期2017-10-1
