双吡啶化合物3,7⁃di(3⁃pyridyl)⁃1,5⁃dioxa⁃3,7⁃diazacyclooctane构建的四个过渡金属配合物的合成、结构及热稳定性  

Preparation,Structures and Thermal Stabilities of Four Transition Metal Complexes Constructed by 3,7⁃Di(3⁃pyridyl)⁃1,5⁃dioxa⁃3,7⁃diazacyclooctane Bipyridine Ligand

作　　者：李理[1] LI Li(School of Chemistry and Life Sciences,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China)

机构地区：[1]苏州科技大学化学与生命科学学院,苏州215009

出　　处：《无机化学学报》2021年第1期121-130,共10页Chinese Journal of Inorganic Chemistry

基　　金：苏州科技大学青年基金(No.XKQ201512)资助。

摘　　要：采用准刚性的双吡啶化合物3,7-di(3-pyridyl)-1,5-dioxa-3,7-diazacyclooctane(L),合成了4个过渡金属配合物[Co(NO3)(H2O)2(L)2]NO3(1)、[Co2Cl4(L)2]·CH2Cl2(2)、[Cd2(AcO)4(L)2]·4CH3OH(3)和[Cd2(NO3)2(CH3OH)2(H2O)2(L)2](NO3)2·2H2O(4)。单晶衍射分析表明,配合物1是单核结构,配合物2是24-元环状双核结构,而配合物3和4为多边形双核结构。在这些配合物中,双吡啶配体分别采用了单齿、trans-和cis-桥连3种不同配位方式。配合物经过了元素分析、红外、热重和X射线单晶结构分析表征。Four transition metal complexes,[Co(NO3)(H2O)2(L)2]NO3(1),[Co2Cl4(L)2]·CH2Cl2(2),[Cd2(AcO)4(L)2]·4CH3OH(3) and [Cd2(NO3)2(CH3OH)2(H2O)2(L)2](NO3)2·2H2O(4),were synthesized by employing a clamplike bipyridine ligand 3,7-di(3-pyridyl)-1,5-dioxa-3,7-diazacyclooctane(L).Single-crystal X-ray analysis reveals that complex 1 is mononuclear structure;2 is macrocyclic dimer;wheras 3 and 4 are rectangular dinuclear structures.The ligand molecules in these complexes has shown three types of coordination mode including mono-dentate.trans-bridge and cis-bridge.All of the complexes were also characterized by elemental analysis,IR,thermal stabilities and singlecrystal structure analysis.

关 键 词：钴 镉 3 7-di(3-pyridyl)-1 5-dioxa-3 7-diazacyclooctane 双吡啶 晶体结构 

分 类 号：O614.242[理学—无机化学] O614.812[理学—化学]