1. Vshape" dimer unit. Besides, the cobalt centers in compound 2 and 3 display different coordination configuration with tetrahedron and trigonal-bipyramidal geometry, respectively. Magnetic studies reveal that compound 1 exhibits fieldinduced slow magnetization relaxation at low temperature, whereas compound 2 shows field-induced spin-flop behavior and compound 3 displays paramagnetism behavior. This work provides a rare example about the different dimensions and magnetic properties in the metal naphthalene phosphonate system;framework structure of compound 3 is built by undulating chains cross-linked by 4,4'-bpy because of special
2. Proton conductive metal phosphonate frameworks;S.-S Bao;Coord. Chem. Rev,2019
3. Nanoporous metal phosphonate hybrid materials as a novel platform for emerging applications: a critical review;X.-W Lv;Small,2021