摘要
用壳寡糖与硝酸钕反应,制备了壳寡糖-钕配合物。用红外光谱和X射线光电子能谱等分析测试手段对配合物进行了表征。从IR和XPS的测试结果可知,Nd3+与壳寡糖上的氨基N和仲羟基O配位,形成壳寡糖-钕配位聚合物。通过电导率研究其配位数,发现Nd3+可与壳寡糖的4个链节单元配位。根据以上的实验可推定中心离子Nd3+与壳寡糖4个链节单元上的氨基N和仲羟基O结合,形成八配位的壳寡糖-钕配位聚合物。
The coordination compound was synthesized from chitooligosaccharide with Nd（NO3）3 ,and was characterized by IR and X-ray photoelectron spectroscopy respectively. The results show that Nd^3＋ ion with chitooligosaccharide formed the coordination compound,Bid^3＋ ion was coordinated with N atom in amino groups and O atom in secondary hydroxyl groups of chitooligosaccharide. The coordination number of COS-Nd（Ⅲ） coordination polymer was studied with conductivity method. The results show that in the COS-Nd（ Ⅲ ） coordination polymer Nd^3＋ was co- ordinated with four oxygen atoms and four nitrogen atoms,so the coordination number is 8.
出处
《分子科学学报》
CAS
CSCD
2008年第5期316-319,共4页
Journal of Molecular Science
基金
辽宁省自然科学基金资助项目(20072063)
关键词
壳寡糖
硝酸钕
配位机理
配位数
chitooligosaccharide
neodymium nitrate
coordination mechanism
coordination number
