Kinetics of oxidation of dichlorobis(substituted pyridine)platinum(II) and of reduction of tetrachlorobis(substituted pyridine)platinum(IV) complexes
作者:Arnaldo Peloso
DOI:10.1039/dt9780000699
日期:——
[AuCl4]– in the presence of [NEt4]Cl and of the reduction of cis-[PtCl4L2] by [NEt4] I have been investigated in acetonitrile [L = pyridine (py), 3Me-, 2Me-, 2,4Me2–, 3Cl-, 4Cl-, 3CN-, or 4CN-py]. The rate law for the oxidation of cis-[PtCl2L2] has the form: Rate =k3[PtCl2L2][AuCl4–][Cl–]. The k3 rate term is not affected by changes in the co-ordinated pyridine and has a value ca. 100 times higher than that
的氧化动力学顺- [氯铂酸2大号2 ]由[AUCL 4 ] -在存在[净4 ] Cl和减少的顺式- [氯铂酸4大号2 ]由[净4 ]我已经研究在乙腈[L =吡啶(PY),3Me-,2Me-,2,4Me 2 -,3Cl-,4Cl-,3CN-,或4CN-PY。顺式-[PtCl 2 L 2 ]氧化的速率定律具有以下形式:速率= k 3 [PtCl 2 L 2 ] [AuCl 4 – ] [Cl– ]。所述ķ 3率术语不受在统筹吡啶变化并具有一个值约 比以前的相关菲咯啉铂( II)配合物高100倍。减少顺式-[PtCl 4 L 2 ]的速率定律具有以下形式:速率= k 2 [PtCl 4 L 2 ] [I – ]。所述ķ 2速率术语强烈地受到L的碱度根据相同的关系与先前找到的相关phenanthrolineplatinum的还原的影响( IV)衍生产品。根据中心金属原子与杂环配体之间的σ和π相互作用讨论了动力学结果。