Ligands containing elements of Group VB. Part II. Silver complexes of substituted bis(carboxymethyl)phenylarsines
作者:L. D. Pettit、A. Royston
DOI:10.1039/j19690001570
日期:——
The preparation of a range of substituted bis(carboxymethyl)phenylarsines of general formula R·C6H4·As(CH2·CO2H)2(H2L) is described and their acid dissociation constants measured at 20° and µ= 0·10M(KNO3). It was considered that the complex species AgL–, AgHL, and AgH2L+ only were formed, and their formation constants, under the same conditions, have been calculated by measuring pH and pAg simultaneously
描述了一系列通式为R·C 6 H 4 ·As(CH 2 ·CO 2 H)2(H 2 L)的取代双(羧甲基)苯基ar的制备方法,并在20°和μ下测量了它们的酸解离常数。= 0·10 M(KNO 3)。据认为,复杂的物种是AgL –,AgHL和AgH 2 L +在碱性条件下滴定配体和银离子的混合物时,通过同时测量pH和pAg,可以计算出在相同条件下仅形成的它们的形成常数。用于形成常数的值彼此相关通过哈米特σ值它们的取代基和解释为提供用于回协调没有证据的结果。