measurements. The crystal structures of [Cu2(L1)2(μ-ox)](ClO4)2⋅2(CH3CN) and [Cu2(L3)2(μ-ox)](ClO4)2 have been determined by single-crystal X-ray analysis. Solvatochromic behaviors were investigated in various solvents, showing positive solvatochromism. The effect of steric hindrance around the copper ion imposed by N-alkyl groups of the diamine chelates on the solvatochromism property of the complexes is discussed
摘要 三种双核
铜(II)配合物,[Cu2(L1)2(μ-ox)](
ClO4)2⋅2(CH3CN),[Cu2(
L2)2(μ-ox)]( )2⋅
H2O, [Cu2(L3)2(μ-ox)]( )2 其中 ox =
草酸根;L = N,N-二甲基,N'-benzylethane-1,2-diamine, L1, N,N-diethyl,N'-benzylethane-1,2-diamine,
L2, N,N-diisoprophyl,N'-benzylethane -1,2-二胺,L3,被制备并通过元素分析、光谱(IR、UV-Vis)数据和摩尔电导测量表征。[Cu2(L1)2(μ-ox)]( )2⋅2(CH3CN)和[Cu2(L3)2(μ-ox)]( )2的晶体结构已通过单晶X测定-射线分析。在各种溶剂中研究了溶剂致变色行为,显示出正溶剂致变色。讨论了二胺螯合物的N-烷基对