摘要
合成了[Ni(en)2]2[Cr(CN)6]ClO4( 简称①)(en = 乙二胺) 和[Ni(trien)]2[Cr(CN)6]ClO4( 简称②)(trien= 三亚乙基四胺) 两个配合物,用元素分析、ICP分析、IR光谱等对配合物进行了表征,测定了它们的磁性质。变温磁化率研究表明:两个化合物中均存在铁磁相互作用, 其居里、外斯常数为[Ni(en)2]2[Cr(CN)6]ClO4 :C= 2.984 cm3 mol- 1 K- 1 ,θ= 45.92 K;[Ni(trien)]2 [Cr(CN)6] ClO4 :C=3 .287 cm3mol- 1K[- 1] ,θ= 29.68 K。研究发现,这两个配合物金属离子Cr(Ⅲ) 和Ni(Ⅱ) 间存在氰基桥联结构。
Two complexes [Ni(en) 2] 2[Cr(CN) 6]ClO 4(①) (en=ethylenediamine) and [Ni(trien)] 2[Cr(CN) 6]ClO 4(②) (trien=triethylenetetramine) are prepared and characterized by elemental analyses,ICP analyses and IR spectra. The temperature dependent magnetic susceptibilities of the complexes were measured . The curie weiss constants are C =2.984cm 3mol -1 K -1 , θ =45.92K for① and C=3.287 cm 3mol -1 K -1 , θ =29.68K for ②. These results indicate that there exist a ferromagnetic spin exchange interaction between Ni(Ⅱ) ion and Cr(Ⅲ) ion in the complexes. Physical chemical studies account for the polymeric structure with cyanide bridges between octahedral Ni and octahedral Cr.
出处
《华东船舶工业学院学报》
1999年第6期42-46,共5页
Journal of East China Shipbuilding Institute(Natural Science Edition)