首页 | 本学科首页   官方微博 | 高级检索  
     

Synthesis and magnetic properties of binuclear cobalt(Ⅱ), nickel(Ⅱ) and copper(Ⅱ) complexes bridged by oxamidate group
引用本文:JIANG,Zong-Hu,DENG,Chao-Li LIAO,Dai-ZhengYAN,Shi-Ping WANG,Geng-Lin Department of Chemistry,Nankai University,Tianjin 300071,China. Synthesis and magnetic properties of binuclear cobalt(Ⅱ), nickel(Ⅱ) and copper(Ⅱ) complexes bridged by oxamidate group[J]. 中国化学, 1994, 12(3): 231-236. DOI: 10.1002/cjoc.19940120306
作者姓名:JIANG  Zong-Hu  DENG  Chao-Li LIAO  Dai-ZhengYAN  Shi-Ping WANG  Geng-Lin Department of Chemistry  Nankai University  Tianjin 300071  China
作者单位:JIANG,Zong-Hu,DENG,Chao-Li LIAO,Dai-ZhengYAN,Shi-Ping WANG,Geng-Lin Department of Chemistry,Nankai University,Tianjin 300071,China
基金项目:Project supported by the National Natural Science Foundation of China.
摘    要:
Four binuclear Co(Ⅱ), Ni(Ⅱ) and Cu(Ⅱ) complexes bridged by oxamidate (oxd) group have been synthesized, namely Co2(byp)2(oxd)(ClO4)2 (1), Co2(Me2bpy)2(oxd)(ClO4)2.H2O (2), Ni2(bpy)2(oxd)(ClO4)2.2H2O (3) and Cu2(Me2bpy)2(oxd)(NO3)2 (4). (bpy=2,2'-bipyridyl, Me2-bpy=4,4'-dimethylbipyridyl, oxd=oxamidate) The complexes are characterized by IR, UV spectra, EPR and variable-temperature magnetic susceptibility (4-300 K). The susceptibility data for. complexes 1 and 3 were least-squares fit to the susceptibility equation derived from the spin Hamiltonian H=-2J . S1 . S2. The exchange integral, J, was found to be equal to -3.62 cm-1 in 1 and -1.82 cm-1 in 3. This indicates a weak antiferromagnetic spin exchange interaction between the metal ions.


Synthesis and magnetic properties of binuclear cobalt(II), nickel(II) and copper (II) complexes bridged by oxamidate group
JIANG,Zong-Hu,DENG,Chao-Li LIAO,Dai-ZhengYAN,Shi-Ping WANG,Geng-Lin. Synthesis and magnetic properties of binuclear cobalt(II), nickel(II) and copper (II) complexes bridged by oxamidate group[J]. Chinese Journal of Chemistry, 1994, 12(3): 231-236. DOI: 10.1002/cjoc.19940120306
Authors:JIANG  Zong-Hu  DENG  Chao-Li LIAO  Dai-ZhengYAN  Shi-Ping WANG  Geng-Lin
Affiliation:JIANG,Zong-Hu,DENG,Chao-Li LIAO,Dai-ZhengYAN,Shi-Ping WANG,Geng-Lin Department of Chemistry,Nankai University,Tianjin 300071,China
Abstract:
Four binuclear Co(II), Ni(II) and Cu(II) complexes bridged by oxamidate (oxd) group have been synthesized, namely Co2(byp)2(oxd)(C104)2 (1), Co2(Me2bpy)2(oxd)(ClO4)2·H2O (2), Ni2(bpy)2(oxd)(ClO4)2·2H2O (3) and Cu2(Me2bpy)2(oxd)(NO3)2 (4). (bpy=2,2′-bipyridyl, Me2-bpy=4,4′-dimethylbipyridyl, oxd=oxamidate) The complexes are characterized by IR, UV spectra, EPR and variable-temperature magnetic susceptibility (4–300 K). The susceptibility data for complexes 1 and 3 were least-squares fit to the susceptibility equation derived from the spin Hamiltonian ?=-2J · ?1·2. The exchange integral, J, was found to be equal to ?3.62 cm?1 in 1 and ?1.82 cm?1 in 3. This indicates a weak antiferromagnetic spin exchange interaction between the metal ions.
Keywords:Binuclear complex   bicobalt(II)   binickel(II)   bicopper(II)   oxamidate-bridge   mag-
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号