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邻羟基苄胺-N,N,O-三乙酸(HBATA,H_3L)为1种带苯氧乙酸基团的氨羧螯合剂。我们曾报道过它的一些过渡金属络合物在溶液中的稳定性、络合物晶体结构及其与Fe(Ⅲ)的络合反应机理,并探讨了Mo(Ⅵ)、Mo(Ⅴ)与其在水溶液中的络合平衡。本文在10℃、Ⅰ=0.5mol/L NaCl、pH3.31～4.16条件下用截流分光光度法研究了Mo(Ⅵ)-HBATA络合物与Cu~(2+)的交换反应动力学,并确定了反应机理。
O-hydroxybenzylamine -N, N, O-triacetic acid (HBATA, H_3L) is a kind of amino acid with a phenoxy acetic acid chelating agent. We have reported the stability of some of its transition metal complexes in solution, the crystal structure of the complex and its complexation reaction mechanism with Fe (Ⅲ), and discussed the effect of Mo (Ⅵ), Mo (Ⅴ) Complex equilibrium in aqueous solution. In this paper, the kinetics of the exchange reaction between Mo (Ⅵ) -HBATA complex and Cu 2+ was investigated by means of interception spectrophotometry at 10 ℃, Ⅰ = 0.5mol / L NaCl, pH3.31 ~ 4.16 The reaction mechanism was confirmed.