Synthesis,Spectra,X-ray Diffraction and Thermal Studies of New Zn(Ⅱ) Compounds Based on Dibenzoylmethane

Two new zinc(Ⅱ) compounds with dibenzoylmethane and N-donor ancillary ligands,Zn(μ-pyz)(dbm)_2]_n(1) and Zn(dbm)_2(μ-bpe)Zn(dbm)_2](2)(Hdbm = dibenzoylmethane,pyz = pyrazine and bpe = 1,2-bis(4-pyridyl)ethane),have been prepared and characterized using elemental analysis,IR,~1H NMR and 13 C NMR spectroscopy,and studied by thermal gravimetric analysis as well as single-crystal X-ray diffraction. The crystal and molecular structures of 1 and 2 have been solved by X-ray diffraction and they turned out to be a one-dimensional coordination polymer with linear dispositions of metal atoms and binuclear compound,respectively. These one-dimensional polymers are further connected to form a 3D supramolecular network by C–H···O(only in 2) and π-π interactions.