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
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 3D metal-organic coordination polymer Pb(1,4-napdc)(DMF) (1,4-napdc=naphthalene-1,4-dicarboxylate) was synthesized at room temperature using slow vapor diffusion method to grow single crystal that has been ana...A novel 3D metal-organic coordination polymer Pb(1,4-napdc)(DMF) (1,4-napdc=naphthalene-1,4-dicarboxylate) was synthesized at room temperature using slow vapor diffusion method to grow single crystal that has been analyzed by X-ray diffraction. The crystal belongs to orthorhombic with space group P212121. The unit cell parameters are as fellows: a=0.701 3(2) nm, b=1.407 6(3) nm, c=1.521 5(4) nm, V=1.501 8(6) nm3 and Z=4. In the crystal structure of Pb(1,4-napdc)(DMF), the square grids constructed with paddle-wheel units of Pb(Ⅱ) and 1,4-napdc links stack over each other to generate infinite 3D network, which has square apertures (1.158 × 1.158 nm2) along the crystallographic a-axis. The thermal stability of compound was investigated by differential scanning calorimetry and thermogravimetric analysis. CCDC: 293617.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 3D metal-organic coordination polymer Pb(1,4-napdc)(DMF) (1,4-napdc=naphthalene-1,4-dicarboxylate) was synthesized at room temperature using slow vapor diffusion method to grow single crystal that has been analyzed by X-ray diffraction. The crystal belongs to orthorhombic with space group P212121. The unit cell parameters are as fellows: a=0.701 3(2) nm, b=1.407 6(3) nm, c=1.521 5(4) nm, V=1.501 8(6) nm3 and Z=4. In the crystal structure of Pb(1,4-napdc)(DMF), the square grids constructed with paddle-wheel units of Pb(Ⅱ) and 1,4-napdc links stack over each other to generate infinite 3D network, which has square apertures (1.158 × 1.158 nm2) along the crystallographic a-axis. The thermal stability of compound was investigated by differential scanning calorimetry and thermogravimetric analysis. CCDC: 293617.
