Iron(II) metal-organic coordination polymer with open metal sites | Poster Board #1036

Transition metal-based coordination polymers play an important role in light-enabled chemical processes such as artificial solar energy conversion and photocatalysts. Syntheses of coordination polymers of first-row metals offer an alternative to cheap photoredoxcatalysts. Here, we created a new metal-organic network: [Fe(Hbpc)₂(H₂O)] (H₂bpc=2,2’-bipyridine-4,4’-dicarboxylic acid). Single-crystal X-ray structural analyses revealed that its structure contains one-dimensional chains of iron (II) cations and Hbpc anions. There are two different complex iron (II) ions: in one complex ion, iron (II) is connected to nitrogens of three ligands, and in the other, the iron (II) bonds to two carboxylate groups of two ligands, two nitrogen atoms of one ligand and two water molecules. Water molecules on iron (II) in the network can be removed to form open metal sites.