The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffrac...The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffraction analysis.The crystal belongs to triclinic with space group P1-.The unit cell parameters are as follows:a=0.7634（3）nm,b=0.7794（3）nm,c=1.0679（5）nm,d=102.087（13）°,β=91.605（13）°,（γ=91.605（10）°,V=0.6262（5）nm3,Z=2,Mr=2.582g/cm3）,μ=13.709mm-1,F（000）=452,R1=0.0355,wR2=0.0785 for the title complex.In [Pb（PNS）（NO3）Cl]·H2O,the Pb（Ⅱ） ion has a distorted square pyramided coordination geometry coordinated by two N and one O atoms from PNS,one Cl-ion and one 0 atom from nitrate ion.展开更多
The title compound was prepared by the solid state reaction of stoichiometric amounts of CdCl2·H2O and 4 nitroaniline . The crystal used for X ray analysis was obtained by slow evaporation of an ethanol aqueous s...The title compound was prepared by the solid state reaction of stoichiometric amounts of CdCl2·H2O and 4 nitroaniline . The crystal used for X ray analysis was obtained by slow evaporation of an ethanol aqueous solution of the solid state reaction at room temperature. The structure of compound was characterized by X ray diffraction analysis. The crystal belongs to orthorhombic, space group Pbca, a=0.77864(7)nm,b=0.72547(6)nm,c=3.3126(2)nm,Z=4,V=1.8712(3)nm3,Dc=1.890g·cm-3,μ=1.763mm-1,F(000)=1048,R=0.0300,wR=0.0697. The title compound is a typical two dimensional organic intercalated compound. The inorganic layers of the compound are formed by CdCl6 octahedra sharing corner Cl atoms (i.e. catena poly[dihlorocadmium di μ chloro]). The organic ammonium cations are intercalated between every two metal halogen layers and formed the organic layers of the compound through hydrogen bonding.展开更多
A new RP-HPLC method for the determination of lead in Rhodiola species was established on a Shim-pack Vp-ODS column（150 mm×4.6 mm I.D.,5μm） at UV 255 nm.The column temperature is 300C.Bis（Salicyladehyde）o-ph...A new RP-HPLC method for the determination of lead in Rhodiola species was established on a Shim-pack Vp-ODS column（150 mm×4.6 mm I.D.,5μm） at UV 255 nm.The column temperature is 300C.Bis（Salicyladehyde）o-phenydnediiminato was used as a on line derivate agent and MeOH-H2O-derivate agent（65:33.5:1.5,v/v） was made use of mobile phase.The method was applied for the determination of lead and the lineal range of lead is 0.1352-0.6759ng（r=0.9989）.The average recovery is 99.2% with RSD being 2.9%（n=5）.展开更多
A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 s...A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group. The Crystallographic data are: a = 0.702 7(14) nm, b = 0.828 95(17) nm, c = 10.225(2) nm, α = 95.02(3)°, β = 91.45(3)°, γ = 99.85(3)°. The crystal structure data indicate that the Zn(Ⅱ) ion was coordinated with the four nitrogen atoms of two dafo and two oxygen atoms of two coordination water molecules, respectively. The complex has a one-dimensional chain structure, which is formed by hydrogen bonds.展开更多
A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in t...A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in the Triclinic system, space group P1, with lattice parameters a=0.589 50(12) nm, b=0.785 70(16) nm, c=0.882 00(18) nm, α=110.98(3)°, β=106.49(3)°, γ=95.08(3)°, and Z=1. The title compound exhibits an infinite chain structure in which each pair of Cd atoms is bridged by two η-1,3-SCN- groups. The unique Cd atom lies on an inversion centre and the coordination sphere is completed by two N-MeIM N atoms to form a CdS2N4 octahedron. The polymeric chains are further extended into three-dimensional network via π...π stackings interactions between the imidazole rings. The cyclic voltammetry behaviors of the compound on glass carbon electrode showed a typical irreversible process. CCDC: 265283.展开更多
文摘The coordination compound of [Pb（PNS）（NO3）Cl]·H2O was synthesized by using ligand PNS and lead nitrate.The molecular structure of [Pb（PNS）（NO3）Cl]·H2O was determined by using a single crystal diffraction analysis.The crystal belongs to triclinic with space group P1-.The unit cell parameters are as follows:a=0.7634（3）nm,b=0.7794（3）nm,c=1.0679（5）nm,d=102.087（13）°,β=91.605（13）°,（γ=91.605（10）°,V=0.6262（5）nm3,Z=2,Mr=2.582g/cm3）,μ=13.709mm-1,F（000）=452,R1=0.0355,wR2=0.0785 for the title complex.In [Pb（PNS）（NO3）Cl]·H2O,the Pb（Ⅱ） ion has a distorted square pyramided coordination geometry coordinated by two N and one O atoms from PNS,one Cl-ion and one 0 atom from nitrate ion.
文摘The title compound was prepared by the solid state reaction of stoichiometric amounts of CdCl2·H2O and 4 nitroaniline . The crystal used for X ray analysis was obtained by slow evaporation of an ethanol aqueous solution of the solid state reaction at room temperature. The structure of compound was characterized by X ray diffraction analysis. The crystal belongs to orthorhombic, space group Pbca, a=0.77864(7)nm,b=0.72547(6)nm,c=3.3126(2)nm,Z=4,V=1.8712(3)nm3,Dc=1.890g·cm-3,μ=1.763mm-1,F(000)=1048,R=0.0300,wR=0.0697. The title compound is a typical two dimensional organic intercalated compound. The inorganic layers of the compound are formed by CdCl6 octahedra sharing corner Cl atoms (i.e. catena poly[dihlorocadmium di μ chloro]). The organic ammonium cations are intercalated between every two metal halogen layers and formed the organic layers of the compound through hydrogen bonding.
文摘A new RP-HPLC method for the determination of lead in Rhodiola species was established on a Shim-pack Vp-ODS column（150 mm×4.6 mm I.D.,5μm） at UV 255 nm.The column temperature is 300C.Bis（Salicyladehyde）o-phenydnediiminato was used as a on line derivate agent and MeOH-H2O-derivate agent（65:33.5:1.5,v/v） was made use of mobile phase.The method was applied for the determination of lead and the lineal range of lead is 0.1352-0.6759ng（r=0.9989）.The average recovery is 99.2% with RSD being 2.9%（n=5）.
文摘A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group. The Crystallographic data are: a = 0.702 7(14) nm, b = 0.828 95(17) nm, c = 10.225(2) nm, α = 95.02(3)°, β = 91.45(3)°, γ = 99.85(3)°. The crystal structure data indicate that the Zn(Ⅱ) ion was coordinated with the four nitrogen atoms of two dafo and two oxygen atoms of two coordination water molecules, respectively. The complex has a one-dimensional chain structure, which is formed by hydrogen bonds.
文摘A novel cadmium(Ⅱ) isothiocyanate complex [Cd(N-MeIM)2(SCN)2]n (N-MeIM=N-methylimidazole) has been prepared and characterized by spectroscopic analysis and crystallographic method. The title compound crystallize in the Triclinic system, space group P1, with lattice parameters a=0.589 50(12) nm, b=0.785 70(16) nm, c=0.882 00(18) nm, α=110.98(3)°, β=106.49(3)°, γ=95.08(3)°, and Z=1. The title compound exhibits an infinite chain structure in which each pair of Cd atoms is bridged by two η-1,3-SCN- groups. The unique Cd atom lies on an inversion centre and the coordination sphere is completed by two N-MeIM N atoms to form a CdS2N4 octahedron. The polymeric chains are further extended into three-dimensional network via π...π stackings interactions between the imidazole rings. The cyclic voltammetry behaviors of the compound on glass carbon electrode showed a typical irreversible process. CCDC: 265283.
