A Porous Cadmium(II) Framework: Synthesis, Crystal Structure, Gas Adsorption, and Fluorescence Sensing Properties

The Cd II compound, namely [Cd(Tppa)(SO 4 )(H 2 O)] n ( 1 ) [Tppa = tris(4‐(pyridyl)phenyl) amine], was synthesized by the reaction of CdSO 4 · 8H 2 O and Tppa under solvothermal conditions. Single crystal X‐ray diffraction analysis revealed that compound 1 features a 3D porous framework based on 1D inorganic –[Cd–SO 4 –Cd] n – chains. Topological analysis reveals that compound 1 represents a trinodal (3,4,6)‐connected topological network with the point symbol of {6.7 2 } 2 {6 4 .7.10}{6 4 .7 5 .8 4 .10 2 }. Gas adsorption properties investigations indicate that compound 1 exhibits moderate adsorption capacities for light hydrocarbons at room temperature. Luminescencence property studies revealed that this Cd II compound exhibits high fluorescence sensitivity for sensing of CS 2 molecule.