Pressure effect on photo-induced electron-transfer reactions between tris-(2,2′-bipyridine)ruthenium(<scp>II</scp>) and various metal complex ions
作者:Fumio B. Ueno、Yoichi Sasaki、Tasuku Ito、Kazuo Saito
DOI:10.1039/c39820000328
日期:——
The electron-transfer quenching of photo-excited [Ru(bpy)32+](bpy = 2,2′-bipyridine) by [Mo(CN)8]4– and Euaq2+ gives large positive and negative activation volumes (ΔV‡+ 24.7 and –11.0 cm3 mol–1), respectively, whereas quenching by other quenchers having quenching rate constants of > 109 mol–1 dm3 s–1 has a negligibly small pressure effect regardless of the charge of quencher.
[Mo(CN)8 ] 4–和Eu aq 2+对光激发的[Ru(bpy)3 2 + ](bpy = 2,2'-联吡啶)的电子转移猝灭产生较大的正和负激活量(分别为ΔV ‡ + 24.7和–11.0 cm 3 mol –1),而采用淬灭速率常数大于10 9 mol –1 dm 3 s –1的其他淬灭剂进行淬灭,无论加料量多少,其压力效应都可以忽略不计。淬灭剂。