4-氨基-1,2,4-三唑Schiff碱双核M(Ⅱ)配合物的合成及磁性

SYNTHESIS AND MAGNETISM OF BINUCLEAR M(Ⅱ) COMPLEXES WITH SCHIFF BASES OF 4-AMINO-1,2,4-TRIAZOLE

合成一类新的配合物［M2L2］（ClO4）2·nH2O［M＝Cu（Ⅱ）（1）、Co（Ⅱ）（2）Ni（Ⅱ）（3），L为4－（邻羟苯基亚甲基）亚胺－1，2，4－三唑］．元素分析、红外光谱、电子光谱等分析数据表明配合物具有酚氧桥的结构．配合物的变温（4～300K）磁化率测定值与理论模型拟合，求得磁参数分别为：配合物（1）J＝－99．32cm－1，g＝2．12；配合物（3）J＝－72．58cm－1，g＝2．12．表明金属离子间有弱的反铁磁相互作用．

New metal complexes of [M2L2](ClO4)2·nH2O were synthesized, [M=Cu(Ⅱ) (1)、Co (Ⅱ) (2)、Ni (Ⅱ) (3), L=4-salicylideneimino-1, 2, 4-triazole]. Based on IR, elemental analysis and electronic spectra, the complexes are proposed to have phenoxybridged structure. The complexes have been characterized with variable-temperature magnetic susceptibility (4~300 K). This suggests that weak aniferromagnetic spin exchang interaction between the M(Ⅱ) ions. Complex (1): J=-99. 32cm-1, g=2.12 and complex (3): J=-72. 58 cm-1, g=2.12.