Structural Chemistry Of Coordination Polymers Based On The The Hydroxypyridine Build Its Molecular Regulation

In this thesis, the metal complexes have been synthesized by the reaction of 3- or 4-hydroxypyridine with metal salts under the condition of different solvents and counter-anions, including 7 mononuclear, 3 dinuclear metal complexes and 5 one-dimensional or two-dimensional infinite coordination polymers. The complexes were characterized by elemental analysis and X-ray single crystal diffraction, and some complexes were selectively characterized by IR, TG and PL. The counter-ions and solvent molecules play interesting roles in the hydrogen bonding supramolecular architectures of the complexes, and also 3- and 4-hydroxypyridine ligands show the special hydrogen bonding donor abilities, respectively. The tautomerization between 4-hydroxypyridine and 4-pyridone molecules may be adjusted by the coordination interactions in the Ca(II) and Ag(I) coordination polymers respectively. Two-dimensional Cd(II) coordination polymer based on 3-hydroxypyridine ligand exhibit a strong blue fluorescent emission in the solid state at room temperature, and it may be a good candidate as blue-light emitting materials. One-dimensional copper(II) coordination polymer constructed by Cu(II) ions and 3-hydroxypyridine ligands with a interesting μ₃—N,O,O'coordination mode, which is the first example of 3-hydroxypyridine complexes containing such coordination mode.