Synthesis, Characterization and Properties of Lanthanide Nitrate Complexes with Isonicotinoyl Hydrazone

作     者：卜显和 高育新 陈巍 刘河 张若桦 BU Xian-he;GAO Yu-xin;CHEN Wei;LIU He;ZHANG Ruo-hua

作者机构：Nankai Univ Dept Chem Tianjin 300071 Peoples R China Peking Univ State Key Lab Rare Earth Mat Chem & Applicat Beijing 100871 Peoples R China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2001年第19卷第1期

页      面：70-73页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina (2 97710 2 2 ) 

主　　题：rare earths lanthanide complexes isonicotinoyl hydrazone synthesis characterization 

摘      要：Some light-lanthanide nitrate complexes were obtained by the reaction of lanthanide nitrate with isonicotinoyl hydrazone (HL = N,N -diisonicotinoyl-2-hydroxy-5-methyl-isophthalaldehyde dihydrazone) in methanol. The general formula of the complexes is Ln(L) (NO3)(2) . nH(2)O(Ln = La, Ce, Pr, Nd and Sm; n = 0, 1). The complexes were characterized by elemental analyses, conductance, thermal analyses, UV and IR spectra. The results show that the lanthanide ion in each complex is coordinated by oxygen and nitrogen atoms of the ligand (L) and the oxygen atoms of the nitrate. The amide-oxygen atoms of L coordinate to the Ln ions in its keto-form. The magnetic susceptibility of the neodymium complex shows that the magnetic data obey Curie-Weiss law in the range of 75K T 300K.