An Original 3d Coordination Polymer Constructed From Trinuclear Nodes And Tetracarboxylato Spacers

A novel 3D coordination polymer,( infinity)(3)[{Cu-3(felden)}(4)(btec)(3)]center dot 17H(2)O, has been assembled using cationic trigonal nodes, [Cu-3(II)(felden)](3+), generated by a tricompartmental ligand, H(3)felden, which results from the Schiff condensation reaction between 2,4,6-triformylphloroglucinol and N,N-dimethylethylenediamine. The tetraanion of the 1,2,4,5-benzenetetracaboxylic acid (H(4)btec) was employed as a spacer. The structure of 1 shows Large icosahedral cavities and channels and the magnetic interaction between the copper(II) ions within the triangles is weak and antiferromagnetic.