吲哚-3-羧酸、Nd(Ⅲ)、邻菲咯啉配合物结构的XPS研究  

Study of the Complexes of Neodymium (Ⅲ) with Indole-3-Carboxylic Acids and 1,10-phenanthroline by XPS

作　　者：张兵[1] 王流芳[2] 陈忠林[2] 

机构地区：[1]中国科学院兰州化学物理研究所OSSO国家重点实验室 [2]兰州大学化学系

出　　处：《Chinese Journal of Chemical Physics》1997年第3期265-268,共4页化学物理学报（英文）

摘　　要：用ＸＰＳ技术表征了吲哚－３－羧酸与钕离子的配合物，结果表明吲哚酸分子通过羧基的两个氧以双齿配位的形式与钕离子形成配合物；加入含氮的中性配体邻菲咯啉后，它们的配位形式明显改变。配位的３个吲哚酸分子中有部分（１或２）仍以双齿形式配位，其余分子以单齿形式配位。吲哚环中的氮未参与配位，邻菲咯啉中的两个氮原子参与配位，与钕离子形成五元环。The complexes of indole-3-carboxylic acids with Nd (Ⅲ) ions have been characterized by XPS.All of the indole-3-carboxylic acids molecules are coordinating to Nd (Ⅲ) in a bidentate fashion through carboxylic oxygen atoms.The chemical composition of binary complexes determined by XPS and elemental analysis are,NdL 3·nH 2O (L=IAA,IPA,IBA).When the N-containing heteroatomatic ligand,1,10-phenanthroline(Phen),was added,the coordination modes of IAA,IPA and IBA with Nd (Ⅲ) are significantly changed.It is found that some of the three IAA (or IPA,IBA) molecules are coordinsting to Nd (Ⅲ) in a monodentate fashion throgh carboxylic oxygen atoms,and the others are coordinating to Nd (Ⅲ) in a bidentate fashion through the carboxylic oxygen atoms.The nitrogen atom in the indole ring has not interacted with Nd (Ⅲ) at all,but the two nitrogen atoms in 1,10-phenanthroline are coordinating to Nd (Ⅲ) to form a five-number ring.The chemical composition of these ternary complexes determined by XPS and element alanalysis are,NdL 3·Phen(L=IAA,IPA,IBA).

关 键 词：吲哚羧酸 XPS IAA 邻菲咯啉 铌 配合物 

分 类 号：O614.512[理学—无机化学]