硫酸氧钒与衍生自邻香兰素的席夫碱H 2 L 1和甘氨酸反应生成[V IV O(H 2 O)L 1(1),用乙酰氯处理可得到顺-[V IV Cl 2 L 1 ](2)。[VO(acac)2 ]与衍生于邻羟基萘甲醛和邻羟基苯胺的席夫碱H 2 L 2在有氧条件下反应产生[{V V O(L 2)} 2μ-O](3),在过量的甲醇中进行甲醇分解以形成[V V O(MeOH)(OMe)L 2 ](5a)。复杂的图5a也通过[V获得V OCL(L 2)](4)和MeOH。用等摩尔量的乙醇处理3时,[V V OCl(L 2)](4)和MeOH。用等摩尔量的乙醇处理3。获得[V V O(OEt)L 2 ](5b)。与手性叔双(乙醇)胺(S)-或(R)-(HOCH2 CH 2)2 NCH(Ph)Me,H 2 L 3,[VO(acac)2 ]仅失去一个乙酰丙酮酯(1-)配体,以及配合物(S)-和(R)-[V V
The homochiral iron(III) wheels [Fe-6(S)-pedea}(6)Cl-6] and [Fe-6(R)-pedea)}(6)Cl-6] [(R)- and (S)-2; pedea = phenylethylaminodiethoxide] exhibit high optical activities and antiferromagnetic exchange. These homochiral products react with each other, producing the centrosymmetric, crystallographically characterized [Fe-6(S)-pedea}(3)(R)-pedea}(3)Cl-6] diastereomer [(RSRSRS)-2]. H-1 NMR and UV-vis studies indicate that exchange processes are slow in both homo- and heterochiral systems but that, upon combination, the reaction between (R)- and (S)-2 occurs quickly.