Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract...Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.展开更多
On the basis of 2,6-bisbenzoylactyl pyridine(L1), 2,6-bis[(3-pyrazoleyl) -5-phenyl]pyridine (L2)and2,6-bis[(3-pyrazoleyl)-3,5-bisphenyl]pyridine(L3) are synthesized. With the synthesized organic compounds as organic l...On the basis of 2,6-bisbenzoylactyl pyridine(L1), 2,6-bis[(3-pyrazoleyl) -5-phenyl]pyridine (L2)and2,6-bis[(3-pyrazoleyl)-3,5-bisphenyl]pyridine(L3) are synthesized. With the synthesized organic compounds as organic ligands, corresponding terbium(Ⅲ) complexes are prepared .The composition of these new compounds are confirmed by 1H-NMR, EA , IR spectrum , UV spectrum and MS .The properties of the complexes are characterized by EA,IR spectrum ,UV spectrum,TG-DTA and fluorescence spectra. Photoluminescence measurements indicate that the effective energy transfer from the organic ligand L2 to the central Tb(Ⅲ) ions occurs in the complexe, and strong and characteristic green mission appears due to the 5D4- 7F5 transitions of the 4f electrons of the central Tb(Ⅲ) ions. The fluorescence spectra shows that the fluorescence emission intensity of Tb(L2) 3·3H2O is stronger than that of Tb2(L1) 3·4H2O,but the property of TG-DTA is not so good as we expected. It cannot be the best material for fabrication of organic light-emitting devices.展开更多
The new complex formulated ·(HOx)2·6H2O(HDPC- is pyridine 2,6 dicarb oxylate,Hoxis 8 Hydroxyquindine) has been synthesized and the crystal structure was determined by X ray diffraction .The crystal structure...The new complex formulated ·(HOx)2·6H2O(HDPC- is pyridine 2,6 dicarb oxylate,Hoxis 8 Hydroxyquindine) has been synthesized and the crystal structure was determined by X ray diffraction .The crystal structure of the complex belongs to monoclinic system with space group C2/c. a=18.423(3)?, b=10.384(2) ?,c=19.139(2)?, α=γ=90°, β=111.050(10)°, V=3417.0(9)?3, Z=4, Dc=1.544Mg·m-3, μ=0.722mm-1. In the crystal Cu? ion is six coordinated to form a distorted octahedron.展开更多
文摘Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.
文摘On the basis of 2,6-bisbenzoylactyl pyridine(L1), 2,6-bis[(3-pyrazoleyl) -5-phenyl]pyridine (L2)and2,6-bis[(3-pyrazoleyl)-3,5-bisphenyl]pyridine(L3) are synthesized. With the synthesized organic compounds as organic ligands, corresponding terbium(Ⅲ) complexes are prepared .The composition of these new compounds are confirmed by 1H-NMR, EA , IR spectrum , UV spectrum and MS .The properties of the complexes are characterized by EA,IR spectrum ,UV spectrum,TG-DTA and fluorescence spectra. Photoluminescence measurements indicate that the effective energy transfer from the organic ligand L2 to the central Tb(Ⅲ) ions occurs in the complexe, and strong and characteristic green mission appears due to the 5D4- 7F5 transitions of the 4f electrons of the central Tb(Ⅲ) ions. The fluorescence spectra shows that the fluorescence emission intensity of Tb(L2) 3·3H2O is stronger than that of Tb2(L1) 3·4H2O,but the property of TG-DTA is not so good as we expected. It cannot be the best material for fabrication of organic light-emitting devices.
文摘The new complex formulated ·(HOx)2·6H2O(HDPC- is pyridine 2,6 dicarb oxylate,Hoxis 8 Hydroxyquindine) has been synthesized and the crystal structure was determined by X ray diffraction .The crystal structure of the complex belongs to monoclinic system with space group C2/c. a=18.423(3)?, b=10.384(2) ?,c=19.139(2)?, α=γ=90°, β=111.050(10)°, V=3417.0(9)?3, Z=4, Dc=1.544Mg·m-3, μ=0.722mm-1. In the crystal Cu? ion is six coordinated to form a distorted octahedron.
