摘要
三脚架结构配体与过渡金属离子形成的配合物具有较高的热力学稳定性、动力学惰性及特殊的配位模式,显示出优良的物理和化学性质,因而在化学、生物和材料等领域具有潜在的应用价值。三脚架有机多胺自1926年F.G.Mann等合成了Ni与三(3-氨基乙基)胺的配合物后,以后有很多类似结构的出现。作为一类重要和常见的螯合剂,它能与许多的金属离子进行螯合,使所得的螯合物具有优良的热力学稳定性。
The complex [ Fe ( MIM ) 3 Htren ] ( ClO4) 2 ( ( MIM)3 Htren : tris |2- [ 2- ( 1 -methyl) imidazolyl ] methylaminoethyl | amine ) was synthesized and characterized by IR, UV-Vis and X-ray crystallography. X-ray single-crystal diffraction shows that Fe atom, being in distorted octahedral geometry ,is coordinated by three imine nitrogen atoms and the three imidazole nitrogen atoms. The data from Moessbauer spectroscopy show that the oxide state of Fe atom is + 2, and the high and the low spin states coexict at room temperature with the ratio of 87:13 for the complex. The complex is a paramagnetie compound with magnetic-cross phenomenon at the range from 2.0 - 350 K.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2009年第6期910-914,共5页
Chemical Research and Application
基金
上海市教委知识创新工程(无机化学)与重点研究项目(No.07ZZ68)
上海市科委重点攻关项目(No.065212050)
关键词
三脚架配合物
咪唑
磁性
穆斯堡尔谱
tripodal
imidazole
magnetism
moessbauer spectroscopy