A Multifunctional 3D Supermolecular Co Coordination Polymer With Potential for CO(2) Adsorption, Antibacterial Activity, and Selective Sensing of Fe(3+)/Cr(3+) Ions and TNP

A 3D supermolecular structure [Co(3)(L)(2) (2,2′-bipy)(2)](DMF)(3)(H(2)O)(3) 1) (H(3)L = 4,4′,4″-nitrilotribenzoic acid) has been constructed based on H(3)L, and 2,2′-bipy ligands under solvothermal conditions. Compound 1 can be described as a (3, 6)-connected kgd topology with a Schläfli symbol (4(3))(2)(4(6).6(6).8(3)) formed by [Co(3)(CO(2))(6)] secondary building units. The adsorption properties of the activated sample 1a has been studied; the result shows that 1a has a high adsorption ability: the CO(2) uptakes were 74 cm(3)·g(−1) at 273 K, 50 cm(3)·g(−1) at 298 K, the isosteric heat of adsorption (Q(st)) is 25.5 kJ mol(−1) at zero loading, and the N(2) adsorption at 77 K, 1 bar is 307 cm(3) g(−1). Magnetic measurements showed the existence of an antiferromagnetic exchange interaction in compound 1, besides compound 1 exhibits effective luminescent performance for Fe(3+)/Cr(3+) and TNP.