Redox Reactions of a [Ru
<sup>III</sup>
(hedtra)(pz)] Complex with Biochemically Important Reductants: Kinetic, Mechanistic and Antimicrobial Studies
作者:Debabrata Chatterjee、Sarita Ghosh、Ujjwal Pal、Sudit Mukhopadhyay
DOI:10.1002/ejic.201100969
日期:2012.2
[RuIII(hedtra)(pz)] (hedtra3– = N-hydroxyethylethylenediaminetriacetate; pz = pyrazine) by biologically important reducing agents, Red (Red = L-ascorbic acid, catechol and cysteine), resulting in the formation of the corresponding red-coloured ruthenium(II) complex has been studied spectrophotometrically using both conventional mixing and stopped-flow techniques. The time course of the reaction was followed
[RuIII(hedtra)(pz)](hedtra3– = N-羟乙基乙二胺三乙酸酯;pz = 吡嗪)被生物学上重要的还原剂 Red(红色 = L-抗坏血酸、儿茶酚和半胱氨酸)还原的动力学,导致已经使用常规混合和停流技术通过分光光度法研究了相应红色钌 (II) 配合物的形成。反应的时间进程作为 [Red]、pH 和温度的函数进行跟踪。发现碱金属离子对反应速率的影响不显着。动力学数据和活化参数根据外球电子转移机制进行解释,并参考相应 RuIII-edta(edta4- = 乙二胺四乙酸酯)复合物报告的数据进行讨论。已经探索了[RuIII(hedtra)(pz)]复合物在抑制生长方面的抗菌活性。在有氧条件下,在半胱氨酸存在下,[RuIII(hedtra)(pz)] 复合物对细菌染色体 DNA 的切割已经讨论了生物学研究的结果。