Synthesis, Crystal Structures, and Magnetic Properties of Three Cobalt(II) Coordination Polymers Constructed from 3,5-Pyridinedicarboxylic Acid or 3,4-Pyridinedicarboxylic Acid Ligands

Three 2D new coordination polymers Co2(L1)2(1,10-Phenanthroline)2(DMF)0.5(H2O) (1), (H2L1 = Pyridine-3,5-dicarboxylic acid) Co(L1)(2,2-bipyridine) (2), and Co(L2)(2,2-bipyridine) (DMF) (3) (H2L2 = Pyridine-3,4-dicarboxylic acid) were synthesized through a solvothermal reaction of cobalt nitrate and pyridine carboxylic acid ligand with the auxiliary ligand (1,10-Phenanthroline or 2,2-bipyridine). They were characterized by X-ray diffraction and elemental analysis, infrared spectroscopy, thermogravimetry analysis, and magnetism. Compounds 1–3 featured 2D hexagonal (6,3) networks which linked into 3D supramolecular architectures through π–π interaction. In addition, compounds 1 and 2 showed the antiferromagnetic exchange interactions, and the magnetic property of compound 3 exhibited ferromagnetic exchange interactions.

A thermally activated manganese 1,4-benzenedicarboxylate metal organic framework with high anodic capability for Li-ion batteries

Mn-1,4-BDC@200 was synthesized, with a capacity of 974 mA h g⁻¹after 100 cycles at a rate of 100 mA g⁻¹.

A cyano-bridged tubular coordination polymer with dominant ferromagnetic interactions

Utilizing [Fe^II(bipy)(CN)₄]²⁻as the building block to react with Mn^II, we successfully synthesized a tubular coordination polymer with dominant ferromagnetic interactions. Moreover, the framework shows high thermal stability.

Structural features and applications of metal–organic frameworks containing thiazole- and thiazolidine-based spacers

This highlight describes the crystal structures and network topology of thiazole- and thiazolidine-containing MOFs and CPs along with their applications in the fields of CO₂ adsorption, luminescence, magnetism and heterogeneous catalysis.