【摘要】 在配位化学中与逐级络合物的化学平衡相反的系列:M+R=MR=M₂R……我们称之为“逆逐级络合物”。在状态分析中常因遇到它们的出现而引起麻烦。本文基于卡隆函数与对应溶液法拟订了一个测定它们稳定常数的方法,用于 Fe（Ⅲ）-CAS体系,获得了满意的结果。方法对逆逐级体系有通用性。更多还原

【Abstract】 The coordination equilibrium of complex formation of the type M + R→ MR→ M2R……is less well understood. As their compositions are contrary to the formation ofconsecutive complexes, those are called "anti-stepwise complexes". The existence of such complexes is usual and often causes difficulties in speciation analysis. Therefore, it is essential to investigate further the chemical equilibrium in solution. In this paper, based on Bjer-rum’s function and the method of corresponding solutions, a method is suggested for determining the stability constants of this kind of conplex. For demonstration purposes it has been used in the iron ( Ⅲ ) and Chrome Azurol S system with satisfactory results. The method is generally applicable and could be used for most ’anti-stepwise’ systems.更多还原