【摘要】 以2-羟基-4-甲氧基二苯甲酮与稀土金属氯化物为原料、乙醇为溶剂,合成了6个2-羟基-4-甲氧基二苯甲酮稀土配合物,通过元素分析、IR、UV、TG/DTA等方法对其结构进行了表征。结果表明,所形成配合物的化学组成为RE(C14H11O3)3,金属离子与配体2-羟基-4-甲氧基二苯甲酮的化学计量比为1∶3;配体中羰基氧、邻位羟基氧与稀土金属离子配位;得到的配合物稳定性高,仍然具有吸收紫外线的能力。更多还原

【Abstract】 Six kinds of rare earth metal complexes were synthesized using RECl3 and 2-hydroxy-4-methoxybenzophenone as raw materials and ethanol as solvent.The composition and structure of the complexes were characterized by elemental analysis,IR,UV and TG/DTA.The experimental results showed the composition of complex was RE(C14 H11 O3) 3,and the complex ratio of rare earth metal ion to 2-hydroxy-4-methoxybenzophenone was 1∶3.Rare earth metal ions coordinated with oxygen atoms of C=O and next to-OH group.The complexes still had the ability to absorb ultraviolet light,and their thermal stability were superior to that of ligand 2-hydroxy-4-methoxybenzophenone.更多还原