Photoinduced Electron-Transfer Reactions: A Study of the Diffusion-Controlled and Activation-Diffusion-Controlled Processes
作者:I. Villa、F. Sanchez、T. Lopes、P. Lopez-Cornejo、P. Perez-Tejeda
DOI:10.1021/jp104681n
日期:2010.8.5
the rate constants of the reaction [IrCl6]2−+ [Ru(bpy)3]2+* in these NaNO3 solutions. The rate constants of this reaction were also obtained by fluorescence quenching measurements. The agreement between the two sets of data (experimental and predicted) is excellent. The trends of association (kd) and dissociation (k−d) rate constants for 2+/3−, 2+/2−, and 2+/2+ reactions in NaNO3 solutions are discussed
扩散控制的电子转移速率常数(ķ d钌络合物的[Ru(L)的几个猝灭反应)3 ] 2 + *(L =联吡啶,苯,和4,7-(CH 3)2 phen)与[在不同浓度的NaNO 3上实验确定了Fe(CN)6 ] 3−。根据这些速率常数,NaNO 3的粘度系数有效值为了考虑反应物之间的平均力势,使用EMSA(指数平均球面逼近)和EF(Eigen-Fuoss)方法来计算溶液。通过计算在这些NaNO 3溶液中反应[IrCl 6 ] 2- + [Ru(bpy)3 ] 2+ *的速率常数,检查了有效参数的可靠性。该反应的速率常数也通过荧光猝灭测量获得。两组数据(实验数据和预测数据)之间的一致性非常好。缔合(k d)和解离(k -d)的趋势)讨论了NaNO 3溶液中2 + / 3-,2 + / 2-和2 + / 2 +反应的速率常数。用于估计使用有效扩散系数的ķ d和ķ -d使我们能够得到本征电子转移速率常