their oxalato groups toward a cationic cis-[CoII(Me2bpy)]2+ complex. The three tris(chelated), six-coordinated metal atoms possess alternating propeller chiralities leading thus to a racemic mixture of heterochiral (Λ,Δ,Λ)- and (Δ,Λ,Δ)-CrIIICoIICrIII triads, whereby the two peripheral chromium(III) ions adopt a trigonal distorted trapezoidal bipyramidal geometry and the central high-spin cobalt(II) ion
两种新颖的异核
铬(III)-
钴(II)式[Cr III(bpy)(ox)2 ] 2 Co II(Me 2 bpy)}·2H 2 O(1)和[Cr III(phen)(ox)2 ] 2 Co II(Me 2 bpy)}·1.5H 2 O(2)[牛 =
草酸, py =
2,2'-联吡啶, 我2 bpy =
6,6'-二甲基-2,2'-联吡啶, 和
苯酚 = 1,10-
菲咯啉使用“作为
配体的复合物/作为
金属的复合物”的策略合成了[]。的X射线晶体结构2包括中性
草酸桥联的Cr III 2 Co II弯曲实体是由两个阴离子[Cr III(phen)(ox)2] –通过它们的其中之一进行复合
草酸 朝向阳离子的基团 顺式-[Co II(Me 2 bpy)] 2+复杂的。他们三个tris(螯合),六配位的
金属原子具有交替的螺旋桨手性,因此导致杂手性(Λ,Δ,Λ)-和外消旋的外消旋混合物(Δ,Λ,Δ)-Cr