摘要
合成了双水杨醛缩乙二胺席夫碱（ＳＡＬＥＮ）与镍的配合物Ｎｉ３（ＳＡＬＥＮ）２（ＮＯ３）６·Ｈ２Ｏ及镧系镍的异核配合物Ｌｎ２Ｎｉ３（ＳＡＬＥＮ）６（ＮＯ３）１２·Ｈ２Ｏ（Ｌｎ＝Ｌａ，Ｎｄ，Ｓｍ，Ｇｄ，Ｙｂ，Ｙ）．以紫外、红外光谱、磁化率，特别是１ＨＮＭＲ及ＥＰＲ波谱等方法研究了它们在组成、结构和配位等方面的异同．ＧｄＮｉＳＡＬＥＮ配合物的ＥＰＲ谱表明其在低温ＴＨＦ中呈“单峰效应”．文中讨论了配合物在不同溶剂中峰宽的相对关系。
A series of heteronuclear complexes of Ln(Ⅲ ) Ni(Ⅱ) and Ni(Ⅱ) complexes with bissalicylaldehyde ethylenediamine (SALEN) have been synthesized. They are formulated as Ln 2Ni 3(SALEN) 6(NO 3) 12 \5H 2O(Ln=La,Nd,Sm,Gd,Yb,Y) and Ni 3(SALEN) 2(NO 3) 6\5H 2O, respectively. The differences in their compositions, structures and coordinations have been investigated by UV, IR, magnetic susceptibility, especially by 1H NMR and EPR spectrascopy. The EPR spectra of the Gd Ni SALEN complex in powder and various solvents were investigated at different temperatures. “Single Peak Effect” was observed in THF solvent at low temperature. The “U” spectral feature, crystal field strength and local symmetry around Gd 3+ were discussed.
出处
《波谱学杂志》
CAS
CSCD
北大核心
1998年第4期327-333,共7页
Chinese Journal of Magnetic Resonance
基金
国家自然科学基金
浙江省自然科学基金
波谱与原子分子物理国家重点实验室基金
