M−1) cm−1) with a shoulder at 450 nm. Reversible spectroelectrochemistry and cyclic voltammetry were observed for this complex, with E12 = −0.448 V vs NHE, and ΔSrcθ = −6 cal · mol−1 · deg−1. Electron transfer kinetics with [CO(en)3]3+ led to k12 = 3100 M−1 s−, ΔH≠ = 12.4 kcal · mol−1 and ΔS≠ = −0.9 cal · mol−1 · deg−1 (I = 0.10 M). For the related [Co(NH3)6]3+ complex, k13 = 1.9 × 104 M−1 s−1. The
                                    钒(II)离子与
吡啶-2-
羧酸酯
配体形成深蓝色的三取代的复合物,该复合物在660 nm(ε= 7.2×10 3 M -1)cm -1)处吸收,在450 nm处具有肩峰。观察到可逆光谱电
化学和循环伏安法对这种复杂的,具有Ë 12 = -0.448 V相对于NHE,和Δ小号RC θ = -6卡·摩尔-1 ·度-1。与电子转移动力学[CO(烯)3 ] 3+导致ķ 12 = 3100米-1小号-,Δ ħ ≠ = 12.4千卡·摩尔-1并且ΔS ≠= -0.9cal·mol -1 ·deg -1(I= 0.10M)。对于相关的[Co(NH 3)6 ] 3+络合物,k 13= 1.9×10 4 M -1 s -1。根据相对的马库斯理论分析了自交换速率常数和活化参数。