Crystal structure, thermal stability and photoluminesence properties of five new Zn(II) coordination polymers constructed from mixed ligand; N-donor pyridine ligands and bis(4-carboxylphenyl)phosphinic acid

摘要： Five new Zn(II) coordination polymers, {[Zn2(HBPO)2(phen)2(H2O)2].H2O}n (1), [Zn2(BPO)(H2BPO)(phen)4]·2(H2BPO)·4H2O (2), {[Zn(HBPO)(4,4’-bipy)0.5].H2O}n (3), [Zn(HBPO)(dpe)0.5]n (4) and {[Zn2(HBPO)2(dpp)].H2O}n (5), constructed from mixed ligand; bis(4-carboxylphenyl)phosphinic acid (H3BPO) and N-donor pyridine ligands (phen, 4,4’-bipy, dpe and dpp), have been synthesized and characterized by single crystal X-ray diffraction, IR spectroscopy and elemental analyses. Intermolecular hydrogen bonds, π- π interaction and other intermolecular interaction are effective in stabilization of the crystal structure of these supramolecular complexes. The thermal stability and luminescence properties of compounds 1-5 in the solid state were studied too.