A 3D Coordination Framework Based on Linkages of Nanosized Hydroxo Lanthanide Clusters and Copper Centers by Isonicotinate Ligands

Lanthanide oxides as sources of lanthanides provided 3D coordination polymers under hydrothermal conditions in which distinct [Ln14(μ6-O)(μ3-OH)20(H2O)8]20+ (Ln=Y, Gd, Dy) clusters are linked to two different types of copper centers through isonicotinate ligands. The unprecedented 3D network topology of these isostructural compounds is exemplified for Ln=Gd in the picture, which reveals the presence of 1D channels along the c axis.