Robust metal–organic framework with [Mn3] clusters: Synthesis, structure and magnetic property

•A novel 3D metal–organic framework with linear Mn3 clusters was obtained.•The compound displays excellent solvents and thermal stability.•Antiferromagnetic interactions exist within this compound.

In this work, one novel three dimensional non-interpenetrated metal–organic framework {[Mn3(L)2(H2O)4]·2H2O·2DMF}n (1) was synthesized by a new tri-carboxylic ligand (H3L = 3,5-Bis-[2-(4-carboxy-phenoxy)-ethoxy]-benzoic acid). Single crystal structural determination revealed that compound 1 possesses a stable 3D framework, containing linear tri-nuclear [Mn3] cluster as a node. The investigation on PXRD patterns in various solvents and TGA displays excellent solvents and thermal stability. Additionally, magnetic measurements indicate that antiferromagnetic interactions exist within compound 1.

Graphical abstractOne novel three dimensional non-interpenetrated metal–organic framework was synthesized by a new tri-carboxylic ligand and Mn(II) ions. The compound is characteristic of linear Mn3 cluster as a node, and displays excellent solvents and thermal stability. Magnetic measurements indicate that antiferromagnetic interactions exist within this compound.Figure optionsDownload full-size imageDownload as PowerPoint slide