摘要
用D-氨基葡萄糖盐酸盐(D-Glu.HCl)与LaCl3或NdCl3反应制备了Glu-La(Ⅲ)和Glu-Nd(Ⅲ)配合物。用元素分析、电导率、红外光谱、紫外光谱和X射线光电子能谱(XPS)等分析测试手段对配合物进行表征。研究了Glu及稀土配合物对O2-.自由基的清除作用。结果表明,Glu与La3+、Nd3+形成的配合物中Glu氨基上的N原子和仲羟基的O原子参与了配位,同时Cl-也参与了配位。Glu和稀土氨基葡萄糖配合物对O2-.均具有明显的清除作用,配合物比Glu对O2-.具有更强的清除活性。
Coordination compounds were synthesized from D-glucosamine hydrochloride and LaCl3 or NdCl3.Their structures were characterized by elemental analysis,molar conductivity,IR,UV-Vis,and X-ray photoelectron spectroscopy.The scavenging effects of D-glucosamine and the rare earth complexes on superoxide anion free radical were studied.The results show that rare earth ion La^3＋ or Nd^3＋ and D-glucosamine formed the coordination compounds.In the two coordination compounds the rare earth ions were coordinated with the N atom in the amino groups and the O atom in the secondary hydroxyl groups of D-glucosamine as well as Cl^-ion.The D-glucosamine and complexes all had significant scavenging effects on the superoxide anion free radical.The rare earth complexes displayed the highest scavenging effects on the superoxide anion free radical.
出处
《应用化学》
CAS
CSCD
北大核心
2009年第4期439-442,共4页
Chinese Journal of Applied Chemistry
关键词
D-氨基葡萄糖
稀土配合物
合成
自由基
D-glucosamine,rare earth coordination compound,synthesis,free radical
