New lanthanide sulfate–oxalate hybrid solids containing different inorganic building blocks

• Three lanthanide sulfate–oxalate hybrid solids were synthesized and characterized.
• An open-framework structure was synthesized under solvent-free conditions.
• These compounds display different ladder-like and framework structures.

Three new lanthanide sulfate–oxalate hybrid solids, Er2(SO4)(C2O4)2(H2O)6·0.5H2O (1), Nd3(SO4)(C2O4)3.5(H2O)7·H2O (2), and [C4H14N2]0.5·Nd2(SO4)2(C2O4)1.5(H2O)4 (3), have been synthesized and structurally characterized. Compound 1 has a rare ladder-like structure, while compounds 2 and 3 have different three-dimensional structures. The presence of large 12-ring channels in the structure of 3 is noteworthy. The powder X-ray diffraction, IR spectra, thermogravimetric analyses, and magnetic susceptibility measurements of compounds 1 and 2 have also been investigated.

Three new lanthanide sulfate–oxalate hybrid solids have been synthesized and characterized. These compounds display different structures containing isolate ErO8 polyhedra, Nd2O16 dimers and inorganic chains of NdO9 polyhedra, respectively.Figure optionsDownload as PowerPoint slide