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新型酰基吡唑啉酮稀土配合物的合成与性质 被引量:1

Synthesis and characterization of a new acylpyrazolone and its rare earth
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摘要 合成了新β双酮试剂1-对甲苯基-3-甲基-4-(α-呋喃甲酰基)吡唑啉酮-5(HL)及其稀土Nd(Ⅲ)、Sm(Ⅲ)、Gd(Ⅲ)配合物.根据元素分析、摩尔电导结果推出配合物的组成为[ML9(HL)]·H2O.通过红外光谱、紫外-可见光谱和差热-热重分析对配合物进行了配位结构与热稳定性的研究.结果表明配体采取烯醇式羟基O及羰基O原子两种配位方式,中心离子的配位数为8.配合物摩尔电导值表明它们都是非电解质.配体的分解温度为209.6℃,配合物的分解温度升至225℃左右,热稳定性增强. A new β-diketone compound,1-(p- methyl -phenyl)-3- methyl-4-(α-furoyl) pyrazolone-5(HL) and its three rare earth complexes have been synthesized. On the basis of the elemental analysis and molar conductance results,the general formula of the complexes, [REL_3(HL)]H_2O (RE=Nd,Sm,Gd)were given. They were also studied on the coordinating structure, thermal stability and general properties by means of IR, UV-visibleTG-DTA. The coordinating atom were O atom of the enol form and O atom of the carbonyl group. Coordinational numbers of rare earth ions were 8. Molar conductance data showed that they were all non electrolytes. Decomposition temperature of ligand was 206.5,which of complexes were 225approximately, their thermal stability was enhanced.
作者 杨玉玲 李锦州 曲丽萍 俞志刚 YANG Yu-ling, LI Jin-zhou, QU Li-ping and YU Zhi-gang(Department of Chemistry, Harbin Normal University,Harbin 150080,China)
机构地区 哈尔滨师范大学
出处 《化学与粘合》 CAS 2005年第4期 195-198,共4页 Chemistry and Adhesion
基金 黑龙江省自然科学基金,黑龙江省教育厅科学技术研究项目
关键词 酰基吡唑啉酮 稀土配合物 合成 <Keyword>acylpyrazolone rare earth complex synthesis
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