DDQ^－和bipyO₂的稀土混配配合物

DDQ － 和bipyO 2 的稀土混配配合物 THE RARE EARTH COMPLEXES OF MIXED-LIGANDS CONTAINING DDQ￣- AND bipyO 2 胡培植 1 first-author 季立才 1 邓国兵 1 张伦 1 武汉大学化学系 武汉大学化学系 Department of Chemistry, Wuhan University Department of Chemistry, Wuhan University 合成了６个以ＤＤＱ－（２，３－二氯－５，６－二腈基对苯醌自由基阴离子）和ｂｉｐｙＯ２（２，２’－联吡啶Ｎ，Ｎ’－二氧化物）为配体的轻稀土混配配合物．通过元素分析、红外光谱、电子吸收光谱、摩尔电导和固体电导的测量及差热一热量分析对配合物进行表征并研究其性质．结果表明：配合物的分子式为Ｌｎ（ｂｉｐｙＯ２）２（ＤＤＱ）３·ｎＨ２Ｏ（Ｌｎ＝Ｙ，Ｌａ，Ｓｍ，Ｅｕ，Ｇｄ，ｎ＝１；Ｌｎ＝Ｎｄ，ｎ＝２），其中ｂｉｐｙ－Ｏ２通过两个氧原子，ＤＤＱ－通过氮原子及氧原子与稀土配位；除钇配合物为１：２型电解质外，其他均为１：１型电解质；配合物具有较好的热稳定性． Six rare earth complexes of mixed-ligands containing DDQ-（2, 3-dichloro-5,6-dicyanobenzoquinone radical ion） and bipyO2 （2, 2’-bipyridine N,N’-dioxide） were synthesized. The compositions and properties of the complexes with the formula Ln （bipyO2）2（DDQ）3·nH2O （Ln=Y, La, Sin, Eu, Gd, n=1; Ln=Nd, n=2） were investigated by elemental analysis, IR, UV-vis,molar conductivity,solid conductivity and TG-DTA. The IR spectrasuggest that bipyO2 coordinated with rare earth metals as a bidentate ligand through its oxygen atoms, while DDQ- through oxygen and nitrogen atoms. The molar conductance datapoint out all the complexes are 1: 1 type electrolyte except Y complex which is 1: 2 type.The DTA results indicate that these complexes are thermally stable. 稀土配合物 2 3－二氯－5 6－二腈基对苯醌 2’－联吡啶N N’－二氧化物 合成 O641.4 国家自然科学基金(61672102) 1996-02-01 2021-04-01 2