Abstract: A new Nickel(Ⅱ) complex was sythesized with 2-hydroxy-4-methoxybenzophenone and NiCl2 used as raw materials, and characterized through IR, TG, UV. The results show that the complex ratio of 2-hydroxy-4-methoxybenzophenone to Nickel(Ⅱ) is 1∶2; the metal ion coordinates with oxygen atoms of -C=O and next to -OH group. Meanwhile, its thermal decomposition process is divided into three weightless stages during 120～630 ℃, of which 120～258 ℃ is the process of a coordinated water lost, and 258～630 ℃ has two thermal decomposition stages. Finally, the complex is decomposed into NiO. UV analysis indicates that thermal stability of the complex is better than that of 2-hydroxy-4-methoxybenzophenone. The complex remains the quality of absorbing ultraviolet radiation.

Key words: 2-Hydroxy-4-methoxybenzophenone , Nickel(Ⅱ) complex , Ultraviolet absorbent

摘要： 以2-羟基-4-甲氧基二苯甲酮(UV-9)和NiCl2 为原料,合成了一种新的镍配合物Ni(C14H11
O3)2·H2O,并通过红外、热重和紫外等手段对其进行表征。结果表明,配体中羰基氧、邻位羟基氧与金属离子配
位,金属离子与配体的化学计量比为1∶2;得到的配合物在120~630 ℃存在3个分解阶段,其中120~258 ℃为受
热失去一个配位水的过程,而258~630℃的两个失重阶段均为其热分解过程,最终分解产物为NiO,且其热稳定性
优于UV-9;紫外分析表明了配合物配合后仍具有吸收紫外线的能力。

关键词: 2-羟基-4-甲氧基二苯甲酮 , 镍(Ⅱ)配合物 , 紫外线吸收剂