比较研究了以C2O4^2-为共反应物时5个结构相关的Ru(Ⅱ)配合物[Ru(bpy)2L^1]^2+,[Ru(bpy)2L^2]^2+,[Ru(bpy)2L^3]^2+,[Ru(phen)2L^1]^2+和[Ru(phen)2L^2]^2+(其中bpy=2,2′-联吡啶,phen=1,10-邻菲啰啉,L1=4-羧基苯基咪唑[4,5-f][1,10]邻菲啰啉,L2=3-羧基-4-羟基苯基咪唑[4,5-f][1,10]邻菲啰啉,L3=3,4-二羟基苯基咪唑[4,5-f][1,10]邻菲啰啉)的电致化学发光(ECL)性质.结果表明,酚羟基的存在能有效地淬灭Ru(Ⅱ)配合物[Ru(bpy)2L^2]^2+,[Ru(bpy)2L^3]^2+和[Ru(phen)2L^2]^2+的ECL,其它Ru(Ⅱ)配合物的ECL量子效率与[Ru(bpy)3]^2+相差不大.
Electrochemiluminescent (ECL) properties of 5 structurally related Ru(Ⅱ) complexes of [Ru(bpy)2L^1]^2 +, [Ru(bpy)2L^2]^2 +, [Ru(bpy)2L^3]^2 +, [Ru(phen)2L^1]^2 + and [Ru(phen)2L^2]^2 + (where bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, L^1 = 4-carboxylphenylimidado[4,5-f] [ 1,10]phenanthroline, L^2 = 3-carboxyl-4-hydroxylphenylimidado[4,5-f][1,10]phenanthroline, and L3= 3,4-dihydroxyphenylimidado- [4,5-f][1,10]phenanthroline) have been studied in CH3CN/H2O (V/V, 1 : 1) by using oxalate as coreactant. The results indicated that the presence of hydroxyl in [Ru(bpy)2L^2]^2+, [Ru(bpy)2L^3]^2+and [Ru(phen)2L^2]^2+ effectively quenches ECL, and the other complexes exhibit comparable ECL efficiencies to [Ru(bpy)3]^2+.