A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 wit...A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 with a=3.392 1（11） nm, b=1.010 3（2） nm, c=1.791 5（4） nm, V=6.140（3） nm3, Z=4, Dc=1.334 g/cm3, F（000）=2 564, R=0.049 6, wR2=0.075 4, （Δρ）max=0.263×103 e/nm3, （Δρ）min=-0.237×103 e/nm3. In the titled complex, each ligand L adopts a "Z" conformation and binds with two Mn（Ⅱ） ions and each Mn（Ⅱ） ion binds with six L ligands to give a one-dimensional twisted supramolecular complex.展开更多
In this paper, the molecular and crystal structures of the NH4[Y(trans CYDTA)(H2O)2]· 4.5 H2O(trans CYDTA=trans 1,2 cyclohexanediaminetetraacetic acid) are reported. The crystal data are as follows: Triclinic sys...In this paper, the molecular and crystal structures of the NH4[Y(trans CYDTA)(H2O)2]· 4.5 H2O(trans CYDTA=trans 1,2 cyclohexanediaminetetraacetic acid) are reported. The crystal data are as follows: Triclinic system, space group,a=0.8599(6)nm,b=1.0021(7)nm,c=1.4370(9)nm,α =88.095(13)° ,β =75.559(1)° ,γ =88.344(12)° ,V=1.1981(14)nm3,Z=2, M=708.68,Dc=1.570g· cm- 3, μ =2.506mm- 1 and F(000)=590. The final R1 and wR2 are 0.0571 and 0.1350 for 4205 [I >2.0σ (I)] unique reflections and 0.1007 and 0.1615 for all 4981 reflections, respectively. In the title complex, the anion [Y(trans CYDTA)(H2O)2]- has an eight coordination structure with distorted square antiprism. The trans CYDTA which acts as a hexadentate ligand with four O atoms and two N atoms and two H2O molecules directly coordinate to central metal Y? ion. It can be known that the Y? ion can form an eight coordinate compound with aminopolycarboxylic acid ligands in addition nine coordination structure.展开更多
A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectromet...A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectrometry. It crystallizes in monoclinic system, space group P21/n with a=1.333 5(14) nm, b=1.310 3(9) nm, c=2.154 4(16) nm, α=90.00°, β=101.130(10)°, γ=90.00°, V=3.694(5) nm3, Z=4, Dc=1.408 Mg·m-3. The single crystal structure indicates that the 2D supramolecular network structure is established by intermolecular weak N-H...I and C-H...I hydrogen-bonding interactions. The N-H...I is responsible for the conformation of one-dimensional zigzag chains and the C-H...I connects these chains to form two-dimensional supramolecular hydrogen-bonding network. At room temperature in the solid state, the complex is photoluminescent with an emission peak maximum at 460 nm, upon excitation at 330 nm. The emission is assigned to the metal-perturbed intraligand (PPh3) in nature. CCDC: 228743.展开更多
文摘A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 with a=3.392 1（11） nm, b=1.010 3（2） nm, c=1.791 5（4） nm, V=6.140（3） nm3, Z=4, Dc=1.334 g/cm3, F（000）=2 564, R=0.049 6, wR2=0.075 4, （Δρ）max=0.263×103 e/nm3, （Δρ）min=-0.237×103 e/nm3. In the titled complex, each ligand L adopts a "Z" conformation and binds with two Mn（Ⅱ） ions and each Mn（Ⅱ） ion binds with six L ligands to give a one-dimensional twisted supramolecular complex.
文摘In this paper, the molecular and crystal structures of the NH4[Y(trans CYDTA)(H2O)2]· 4.5 H2O(trans CYDTA=trans 1,2 cyclohexanediaminetetraacetic acid) are reported. The crystal data are as follows: Triclinic system, space group,a=0.8599(6)nm,b=1.0021(7)nm,c=1.4370(9)nm,α =88.095(13)° ,β =75.559(1)° ,γ =88.344(12)° ,V=1.1981(14)nm3,Z=2, M=708.68,Dc=1.570g· cm- 3, μ =2.506mm- 1 and F(000)=590. The final R1 and wR2 are 0.0571 and 0.1350 for 4205 [I >2.0σ (I)] unique reflections and 0.1007 and 0.1615 for all 4981 reflections, respectively. In the title complex, the anion [Y(trans CYDTA)(H2O)2]- has an eight coordination structure with distorted square antiprism. The trans CYDTA which acts as a hexadentate ligand with four O atoms and two N atoms and two H2O molecules directly coordinate to central metal Y? ion. It can be known that the Y? ion can form an eight coordinate compound with aminopolycarboxylic acid ligands in addition nine coordination structure.
文摘A new photoluminescence supramolecular compound [Cu(HIm)(PPh3)2I] was synthesized and characterized by single crystal X-ray diffraction, elemental analysis, as well as IR, UV-Vis absorption and luminescence spectrometry. It crystallizes in monoclinic system, space group P21/n with a=1.333 5(14) nm, b=1.310 3(9) nm, c=2.154 4(16) nm, α=90.00°, β=101.130(10)°, γ=90.00°, V=3.694(5) nm3, Z=4, Dc=1.408 Mg·m-3. The single crystal structure indicates that the 2D supramolecular network structure is established by intermolecular weak N-H...I and C-H...I hydrogen-bonding interactions. The N-H...I is responsible for the conformation of one-dimensional zigzag chains and the C-H...I connects these chains to form two-dimensional supramolecular hydrogen-bonding network. At room temperature in the solid state, the complex is photoluminescent with an emission peak maximum at 460 nm, upon excitation at 330 nm. The emission is assigned to the metal-perturbed intraligand (PPh3) in nature. CCDC: 228743.
