A new porous heterometallic metal‐organic framework for gas adsorption and luminescence sensing

Abstract

A new heterometallic metal-organic framework, namely [Zn 2 Sr-(btc) 2 (H 2 O) 3 ] n • x(solvent) (1 btc = 1,3,5-benzenetricarboxylate), has been solvothermally synthesized and structurally characterized. X-ray structural analysis reveals that compound 1 exploits heterometallic trinuclear [Zn 2 Sr(COO) 6 ] clusters as secondary building subunits, and displays a 3D framework with 1D channels along crystallographical c axis that can be simplified into a binodal (3,6)-connected topological network. The activated sample of 1 a shows high CO 2 adsorption capacity and high adsorption selectivity of CO 2 over N 2 at 298 K. Luminescent properties investigations indicate that 1 a can sensitively sensing of CS 2 via luminescence quenching.

Synthesis of a Heterometallic [Zn2Ca] Pinwheel Array Stabilized by Amide-Amide Synthons

“…Furthermore, complexes displaying 0D (11 hits) and 3D (14 hits) structures were more abundant than 1D or 2D CPs (both presenting 5 hits). Of note, the central s-block metal ions were located in octahedral O-based pockets in almost every structure, except for three examples containing Sr(II) or Ba(II), whose bigger ionic radii allowed the expansion of the coordination sphere reaching [SrO 8 ]/[BaO 8 ] cores [15,57,58]. Otherwise, the coordination sphere of the lateral Zn(II) ions showed diverse coordination pockets, displaying [ZnO 4 ] (15 hits), [ZnO 5 ] (1 hit), [ZnO 3 N] (13 hits), [ZnO 4 N] (4 hits), and [ZnO 3 N 2 ] (2 hits) cores.…”

A 2D layered Cd(II) coordination polymer supported by in situ generated tetracarboxylate ligand: luminescence sensing for Co2+ ions

“…The design and syntheses of coordination polymers have drawn considerable attention mainly owing to their wide applications prospects in the areas of gas adsorption/separation, luminescence sensing, magnetism, non-linear optics, heterogeneous catalysis, molecular recognition, and so on. [1][2][3][4] Compared to other materials, the functional properties of coordination polymers can be easily tuned via the modification of the organic ligands and the change of central metal ions. [5][6][7] After decades of development, coordination polymers can be easily synthesized under hydro(solvo)thermal conditions through the rational selection of organic ligands.…”