作者:Kei Fujiwara、Takayuki Ishida
DOI:10.1016/j.poly.2011.02.035
日期:2011.11
been prepared and characterized, where each benzene ring was substituted with two halogen atoms in salen (H2salen = N,N′-disalicylideneethylenediamine). The X-ray diffraction study on 3,3′,5,5′-tetrachloro-, 3,3′,5,5′-tetrabromo-, and 4,4′,6,6′-tetrachlorosalen derivatives clarified their polymeric structure with the (–V O–)n repeating unit. The interatomic V···V distances are 3.710(3), 3.695(3), and 3
摘要制备并表征了五种氧杂钒(IV)配合物[VO(X4salen)],其中每个苯环被salen(H2salen = N,N'-二水杨基亚乙基二胺)中的两个卤素原子取代。3,3',5,5'-四氯-,3,3',5,5'-四溴-和4,4',6,6'-四氯salen衍生物的X射线衍射研究阐明了它们的聚合物结构(-VO–)n重复单元。原子间的V···V距离分别为3.710(3),3.695(3)和3.749(3)A,比已知的[VO(salpn)](3.83 A; H2salpn = N,N' -二水杨基亚丙基二胺)。通过将磁化率数据拟合到一维铁磁模型来确定交换耦合参数(J),得到2J / kB = 8.2–16 K,这在[VO(salen)]和[VO(salpn)中最大)] 家庭。