Experimental and DFT study of the kinetics of the interaction of Pt(II) and Pd(II) with disulfides in hydrochloric acid solutions
作者:Alexander I. Petrov
DOI:10.1016/j.ica.2022.121269
日期:2023.1
paper, the kinetics and mechanistic studies of the kinetics of the interaction of [PtCl4]2− and [PdCl4]2− with cystine, cystamine, homocystine, and dithiodipropionic acid have been reported. The direction of the reaction primarily depends on the nature of the metal. The rate-limiting step for the interaction [PtCl4]2− with cystine and dithiodipropionic acid is the formation of S,S-binuclear disulfide
本文报道了[PtCl 4 ] 2−和[PdCl 4 ] 2−与胱氨酸、胱胺、高胱氨酸和二硫代二丙酸相互作用的动力学和机理研究。反应的方向主要取决于金属的性质。[PtCl 4 ] 2−与胱氨酸和二硫代二丙酸相互作用的限速步骤是形成S,S-双核二硫铂络合物[Pt 2 Cl 6 (R-SS-R)];对于胱胺是形成S-二硫铂络合物[PtCl 3 (R-SS-R)];对于同型半胱氨酸,铂 (IV) 硫醇络合物 [PtCl4 (SR) 2 ]。[PdCl 4 ] 2−与胱氨酸相互作用的限速步骤是形成S,S-双核二硫铂络合物[Pd 2 Cl 6 (R-SS-R)];对于同型半胱氨酸是形成S-二硫铂络合物[PdCl 3 (R-SS-R)];对于胱胺,限速步骤由单核和双核二硫化物复合物形成的贡献表示;对于二硫代二丙酸,是双核 S,S'-二硫化物钯络合物的水解。