【摘要】 <正> 邻羟基苄胺-N,N,O-三乙酸（HBATA,H₃L）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Cu²⁺的交换反应动力学,并确定了反应机理。更多还原

【Abstract】 The kinetics of the metal exchange reaction between o-hydroxybenzylamine-N,N,O-tri-acetic acid(H3L) complex of molybdenum (Ⅵ) and cupric ion has been studied by means of stopped-flow technique over the pH range of 3. 3l~4. 16 at 10℃ , I = 0. 5 mol/L(NaCl). The variation of the pseudo-first order rate constant kobs with [H + ] and CCu indicates a SN1 IP mechanism and the following rate equation and reaction scheme were derived on it:where KH is the protonation constant of Mo (Ⅵ)LH2, and更多还原