Copper(II) Complexes of Tetradentate Pyridyl Ligands Supported on Keggin Polyoxometalates: Single-Crystal to Single-Crystal Transformations Promoted by Reversible Dehydration Processes
作者:Amaia Iturrospe、Beñat Artetxe、Santiago Reinoso、Leire San Felices、Pablo Vitoria、Luis Lezama、Juan M. Gutiérrez-Zorrilla
DOI:10.1021/ic302499f
日期:2013.3.18
Two new hybrid compounds constructed from Keggin type polyoxometalates and copper(II) complexes of tetradentate ligands containing amine and pyridyl groups, namely [Cu(bpmen)(H2O)][SiW12O40Cu(bpmen)}] (1) and [SiW12O40Cu(bpmpn)(H2O)}2]·3H2O (2) (bpmen, N,N′-dimethyl-N,N′-bis-(pyridin-2-ylmethyl)-1,2-diaminoethane; bpmpn, N,N′-dimethyl-N,N′-bis(pyridin-2-ylmethyl)-1,3-diaminopropane), have been synthesized
由Keggin型多金属氧酸盐和含胺基和吡啶基的四齿配体的铜(II)配合物构成的两个新的杂化化合物,即[Cu(bpmen)(H 2 O)] [SiW 12 O 40 Cu(bpmen)}](1)和[SiW 12 O 40 Cu(bpmpn)(H 2 O)} 2 ]·3H 2 O(2)(bpmen,N,N'-二甲基-N,N'-双-(吡啶-2-基甲基) )-1,2-二氨基乙烷; bpmpn,N,N'-二甲基-N,N'-双(吡啶-2-基甲基)-1,3-二氨基丙烷),已在水热条件下合成并通过元素分析和红外和拉曼光谱。1和2的热稳定性已通过热重分析和可变温度粉末X射线衍射进行了研究。两种化合物都经历了可逆脱水过程促进的单晶至单晶转变,随后进行了单晶X射线衍射。已经确定了1和2的结构,以及它们相应的无水相1a和2a的结构。的层状结构1个示出了具有复杂的阳离子占据板内空间monodecorated聚阴