Kinetic studies on the reactions of [Pd(dach)(X–Y)] complexes with some DNA constituents
作者:Biljana Petrović、Živadin D. Bugarčić、Rudi van Eldik
DOI:10.1039/b714329j
日期:——
inosine-5'-monophosphate and guanosine-5'-monophosphate under pseudo-first-order conditions as a function of nucleophile concentration, temperature and pressure using stopped-flow techniques. Two consecutive reaction steps, which both depend on the nucleophile concentration, were observed. The rate constants for all reactions indicate a direct substitution of the X-Y chelate by the selected nucleophiles,
六个Pd(dach)配合物的配合物形成反应的动力学,dach = 1,2-trans-R,R-二氨基环己烷,即。[Pd(dach)Cl2],[Pd(dach)(H2O)2] 2+,以及四种具有不同螯合离去基团XY的络合物。[Pd(dach)(O,O-环丁烷-1,1-二羧酸酯)],[Pd(dach)(N,O-甘氨酸)](+),[Pd(dach)(N,S-蛋氨酸)]研究了+和[Pd(dach)(O,O-Oxalate)]。研究了离去基团对亲核肌苷肌苷,肌苷5'-单磷酸和鸟苷5'-单磷酸的亲核试剂肌苷浓度的函数对亲核试剂浓度的影响。 ,使用停止流技术的温度和压力。观察到两个连续的反应步骤,这两个步骤均取决于亲核试剂的浓度。所有反应的速率常数表明,XY螯合物被所选亲核试剂直接取代,从而表明了螯合物的性质,即。OO(cbdca),(ox),NO(gly)或SN(l-met)在Pd(ii)配合物的动力