A Novel 3D Metal Coordination Polymer Based on Tetranuclear Cobalt Cluster Building Blocks: Synthesis, Crystal Structure and Photocatalytic Property

A novel 3D MCP, [Co-2(mu(3)-OH)(b(c)(bmip)](n) (1, H(3)btc = 1,3,5-benzenetricarboxylate acid, bmip = 1,3-bis(2-methylimidazolyl)propane), was synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, powder XRD, FT-IR, TGA and elemental analysis techniques. MCP 1 features a 3D framework based on tetranuclear Co( II) clusters where the four cobalt ions are coplanar, and shows an unusual binodal (3,10)-connected topology. Furthermore, the photocatalytic experiment result indicates the degradation ratios of rhodamine B(RhB) reach 78.2% when MCP 1 acts as catalyst.