Three new compounds, namely, [Zn（mtpo）2（H2O）4]（l）, [Cd（mtpo）2-CH3CH2OH].（2） and [Mn（mtpo）2·CH3CH2OH]n（3）（Hmtpo=4,7-dihydro-5-methyl-7-oxo-[1,2,4]triazolo[1,5-a]pyrimidine）, have been synthesized v...Three new compounds, namely, [Zn（mtpo）2（H2O）4]（l）, [Cd（mtpo）2-CH3CH2OH].（2） and [Mn（mtpo）2·CH3CH2OH]n（3）（Hmtpo=4,7-dihydro-5-methyl-7-oxo-[1,2,4]triazolo[1,5-a]pyrimidine）, have been synthesized via hydrothermal or solvothermal methods and characterized by means of elemental analyses, Fourier transform infrared（FYIR） spectroscopy, powder X-ray diffraction（PXRD）, thermogravimetric analysis（TGA） and single-crystal X-ray diffraction. The results obtained from the single-crystal X-ray diffraction indicate that compound 1 has a mononuclear structure, and crystallizes in a monoclinic crystal system with P21/c space group, which exhibits a 2D supramolecular network constructed by hydrogen bonds and π-π interactions. Compounds 2 and 3 are isomorphous and crystallize in a tetragonal system with space group of I41/a. The M^2＋（M=Cd, Mn） ions in compounds 2 and 3 have the octahedral coordination geometry. Hmtpo acts as a bridging ligand linking the metal ions to form an infinite 3D framework with 4-connected {4^2·8^4} topology. There are hydrogen bonds between the guest ethanol molecules and the mtpo ligands, which make the ethanol molecules exist in a 3D framework. In addition, luminescent properties of compounds 1 and 2 as well as magnetic property of compound 3 were investigated and water vapor adsorption and nitrogen sorption for compounds 2 and 3 were researched at 298 and 77 K, respectively.展开更多
基金Supported by the National Natural Science Foundation of China（Nos.21271024, 20971014） and the Natural Science Foundation of Beijing City, China（No.2112037）.
文摘Three new compounds, namely, [Zn（mtpo）2（H2O）4]（l）, [Cd（mtpo）2-CH3CH2OH].（2） and [Mn（mtpo）2·CH3CH2OH]n（3）（Hmtpo=4,7-dihydro-5-methyl-7-oxo-[1,2,4]triazolo[1,5-a]pyrimidine）, have been synthesized via hydrothermal or solvothermal methods and characterized by means of elemental analyses, Fourier transform infrared（FYIR） spectroscopy, powder X-ray diffraction（PXRD）, thermogravimetric analysis（TGA） and single-crystal X-ray diffraction. The results obtained from the single-crystal X-ray diffraction indicate that compound 1 has a mononuclear structure, and crystallizes in a monoclinic crystal system with P21/c space group, which exhibits a 2D supramolecular network constructed by hydrogen bonds and π-π interactions. Compounds 2 and 3 are isomorphous and crystallize in a tetragonal system with space group of I41/a. The M^2＋（M=Cd, Mn） ions in compounds 2 and 3 have the octahedral coordination geometry. Hmtpo acts as a bridging ligand linking the metal ions to form an infinite 3D framework with 4-connected {4^2·8^4} topology. There are hydrogen bonds between the guest ethanol molecules and the mtpo ligands, which make the ethanol molecules exist in a 3D framework. In addition, luminescent properties of compounds 1 and 2 as well as magnetic property of compound 3 were investigated and water vapor adsorption and nitrogen sorption for compounds 2 and 3 were researched at 298 and 77 K, respectively.
