We have studied the interaction between zirconium sulfate and mandelic acid by means of characterization methods, such as FTIR, XRD, UV-Vis,~(13)C NMR,deproton calculation and so on.The results showed that, at room temperature and under the conditions of pH ≈0.5,zirconium sulfate can coordinate with the hydroxyl and carboxyl groupson bittermandelic acid. The coordination number of Zr~(4+) with —OH and —COOH are 1. And synthesis of five membered ring complexes by double tooth coordination chelate.
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