A new three-dimensional terbium-carboxylate framework possessing Tb2 and Tb4 clusters: Synthesis, structure, luminescent and magnetic properties

A new three-dimensional terbium-carboxylate framework [Tb4L3(H2O)9]·7H2O (1) [(H4L = 4,4′-(hexafluoroisopropylidene)diphthalic acid)] has been hydrothermally synthesized and structurally characterized. The framework contains Tb2 and Tb4 clusters, and exhibits an unprecedented 4-nodal (3,4,5,8)-connected topology. In addition, the thermogravimetric analysis, luminescent and magnetic properties were investigated.

Graphical abstractA new terbium metal-organic framework featuring an unprecedented 4-nodal (3,4,5,8)-connected topology has been constructed by the assembly of Tb2 and Tb4 clusters and 4,4′-(hexafluoroisopropylidene)diphthalate tetracarboxylate ligand, which exhibits both antiferromagnetic and strong luminescent properties.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new terbium-carboxylate framework possessing Tb2 and Tb4 clusters. ► The framework displays an unprecedented 4-nodal (3,4,5,8)-connected net. ► The framework exhibits both antiferromagnetic and green luminescent properties.