Synthesis and stabilities of the Ga(III) and In(III) chelates of a new diaminodithiol bifunctional ligand
作者:Yizhen Sun、Arthur E. Martell、Ramunas J. Motekaitis、Michael J. Welch
DOI:10.1016/s0040-4020(98)00121-5
日期:1998.4
2,2-dimethyl)ethyl]-1,2-ethylenediamine-N,N′-diacetic acid (B6SS) is described. It consists of substitution of a side-chain, a 4-carboxymethoxybenzyl group on a carbon atom of the ethylenediamine moiety of a hexadentate ligand, 6SS, which has been found to have a very high affinity for In(III). Potentiometric determination of Ga(III) and In(III) chelate stabilities of the bifunctional ligand show that
新型双功能配体1-(4-羧基甲氧基苄基)-NN'-双[(2-巯基-2,2-二甲基)乙基] -1,2-乙二胺-N,N'-二乙酸(B6SS)的合成描述。它由侧链取代,即六齿配体6SS的乙二胺部分碳原子上的4-羧基甲氧基苄基,已发现它对In(III)具有非常高的亲和力。双功能配体的Ga(III)和In(III)螯合物稳定性的电位测定表明,配体上的侧链将pM值降低了约2–4 log值。