摘要
合成了15种新的镧系高氯酸盐和二缩三乙二醇二甲醚的配合物,证明其组成为 Ln(ClO_4)·EO_3Me_2·5H_2O(Ln=La—Lu,Y).由于端基的改变明显影响配位能力,因而引起配合物组成及物化性质等一系列变化.本文尝试以~C NMR 弛豫速率法获取直链聚醚配合物中的结构信息,并探讨其构象问题,实验证明成配后配体采取全 TGT 构象.
Fifteen new complexes of lanthanide perchlorates including yttrium withtriethylene glycol dimethyl ether have been synthesized and characterized.Thecomposition of them is Ln(ClO_4)_3EO_3Me_2·5H_2O (Ln=La—Lu,Y).Terminal groupsof ligand play an important role in the complexation and cause a great change intheir properties.^(13)C NMR relaxation rate of complexes has been investigated forgetting the structure information.It has been shown that the ligand in the complexeshas TGT conformation.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1991年第10期987-992,共6页
Acta Chimica Sinica
基金
国家自然科学基金
