Synthesis, characterization, and fluorescence of a highly stable two-dimensional zinc coordination polymer

In this work, we have successfully introduced the nitrogen-rich aromatic ligand 5,5 '-bipyrimidine (BYPM) as auxiliary ligands into the 3-nitrophthalic acid (NPTA) system, and a Zn(II)-based coordination polymer [Zn-2(BYPM)(NPTA)(2)](n) (1) has been synthesized under solvothermal condition. The 1 is characterized by elemental analysis, Thermogravimetric analysis (TGA), single-crystal X-ray diffraction, and X-ray diffraction patterns (PXRD). The single-crystal X-ray analysis indicates that 1 propagates into a layer-like framework along the ac plane through the coordination Zn2+ ions and further forms a three-dimensional supramolecular framework through intermolecular C-H....O and C-H...N hydrogen bonds. Thermogravimetric analysis and powder X-ray diffraction experiments indicate that 1 has high thermal and solvent stability. Meanwhile, the fluorescence of 1 has been explored.

Automated summary

In this work, a nitrogen-rich aromatic ligand, 5,5'-bipyrimidine (BYPM), was successfully introduced into a 3-nitrophthalic acid (NPTA) system, resulting in the synthesis of a Zn(II)-based coordination polymer with high thermal and solvent stability. The fluorescence properties of the coordination polymer were also explored.