Synthesis,crystal structure and magnetic properties of bimetallic complex of Ni2Co(TTHA).12H2O

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: polyaminopolycarboxylate triethylenetetraaminehexaacetic acid crystal structure magnetic property
• 年，卷（期）: 2008,（3）
• 页码范围: 294-297
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11458-008-0066-4

摘要

The bimetallic complex of Ni2Co(TTHA).12H2O (TTHA=triethylene tetraminehexaacetic acid)was synthesized and characterized structurally and magnetically. The title complex crystallizes in the triclinic c=1.5041(4) nm;α=73.38(2),β=83.97(2),7=70.50(2)°.The crystal structure is built up of [Niz(TTHA)(H2O)2]2,,Co(H2O)6 2+and water molecules. The variable magnetic measurement shows that there is strong antiferromagnetic interaction between two Ni(Ⅱ) ions in [Ni2(TTHA)(H2O)2]2,with JNi,Ni=,141.64 cm,1,gNi=2.21 and that the constant of spin,orbit coupling of Co(Ⅱ) ion is ,134.8 cm,1.