高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (6): 724.

• 论文 • 上一篇    下一篇

草酰胺基桥联的新型Cu(Ⅱ)-Co(Ⅱ)配合物的合成和性质研究

廖代正, 张智勇, 姜宗慧, 郝松琪, 王耕霖   

  1. 南开大学化学系, 300071
  • 收稿日期:1990-03-23 出版日期:1991-06-24 发布日期:1991-06-24
  • 通讯作者: 廖代正
  • 基金资助:

    国家自然科学基金

Synthesis and Properties of μ-Oxamido Heterobinuclear Cu(Ⅱ)-Co(Ⅱ) Complexes

Liao Dai-zheng, Zhang Zhi-yong, Jiang Zong-hui, Hao Song-qi, Wang Geng-lin   

  1. Department of Chemistry, Nankai University, Tianjin, 300071
  • Received:1990-03-23 Online:1991-06-24 Published:1991-06-24

PDF (PC)

被引次数

4

摘要： 合成了3种新型配合物[Cu(oxpn)Co(L)2]·(CIO4)2·xH2O。[Oxpn为N,N′-二(3-氨丙基)草酰胺基阴离子;L为2,2′-联吡啶(bpy)、1,10-菲绕啉(phen)和5-硝基-1,10-菲绕啉(NO2-phen);x=1,2]。经元素分析、IR、电导和电子光谱等方法,推定配合物具有扩展的草酰胺桥结构,Cu(Ⅱ)及Co(Ⅱ)的配位环境分别为平面四方和八面体构型。配合物的变温磁化率已测(4.2～300K)。其数值已用最小二乘法与从自旋哈密顿算符导出的磁方程拟合,求得交换参数J为-22.36cm-1(bpy),-15.45cm-1(phen)和-19.10cm-1(NO2-phen),表明金属离子间有较弱的反铁磁交换作用。

关键词: 草酰胺桥, Cu(Ⅱ)-Co(Ⅱ), 磁性

Abstract: Three heterobinuclear complexes were synthesized, namely Cu(oxpn)Co(L)2(ClO4)2·xH2O (L=2,2'-bipyridyl (bpy), 1, 10-phenanthroline (phen), and 5-nitro-1,10-phenanthroline (NO2-phen), where oxpn is N, N'-bis(3-aminopropyl)oxamido. Based on IR, elemental analyses, conductivity measurement and electronic spectra these complexes are proposed to have extended oxamido-bridged structure and to consist of Cu(Ⅱ) in a planar environment and Co(Ⅱ) in an octahedral environment. The cation symmetry is very close to C2v. The complexes were characterized with variable temparaturo magnetic susceptibility (4～300K) and the data were fitted with the least-square to the susceptibility equation derived from spin Hamilton,.The exchange integral, J, was found to be -22.36 cm-1(for bpy); -15.45 cm-1(for phen);-19.10 cm-1(for NO2-phen), indicating that a weak antiferromagnetic spin-exchange interacts between the metal ions.

Key words: Oxamido-bridge, Copper(Ⅱ)-cobalt(Ⅱ), Magnetism

TrendMD: