摘要
报导了４个Ｓｃｈｉｆ碱配体的Ｃｕ（Ⅱ）配合物［（Ｃｕ（Ⅱ）（Ｌ１）］ＣｌＯ４（１），［Ｃｕ（Ⅱ）（Ｌ２）（Ｈ２Ｏ）］ＢＦ４（２），Ｃｕ（Ⅱ）２（Ｌ３）２（Ｃｌ）２（３）和［Ｃｕ（Ⅱ）２（Ｌ４）（ＯＨ）（Ｈ２Ｏ）２］（ＢＦ４）２（４）的合成和晶体结构以及它们的电子光谱特性．４个配体由醛与胺缩合而得，产物未经分离，直接用于合成配合物，以配合物产率计，缩合反应的产率不低于６０％．通过比较它们的晶体结构参数发现双核配合物的Ｃｕ（Ⅱ）－Ｏｐｈｅｎ键较单核配合物相应的键长，可见区电子吸收光谱显示配合物（１）的ｄ－ｄ跃迁吸收波长（５５７ｎｍ）比配合物（２），（３）。
Preparations and crystal structures of four Cu(Ⅱ) Schiff base complexes are reported in this work ,and their spectroscopic features are preliminarily described. The ligands are afforded from in situ reactions of aldehydes and amines by no separation and purification. Yields of condensation reactions are not less than 60% by calculation based on the yields of complexes. Comparison of the bond lengths of (1)～(4) reveals that the Cu(Ⅱ)-O phen bands of binuclear complexes are longer than those of mononuclear complexes. UV Vis spectrum of (1) exhibits an absorption in visible region at 557 nm for d d transition that possesses higher energy than those of complexes (2)～(4) (605～608 nm).
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第1期70-74,共5页
Journal of Central China Normal University：Natural Sciences
