The title complex of nickel (II) with 3,5-dimethylbenzoic acid, m-methylbenzoic acid and 1,10- phenanthroline was synthesized and characterized. Crystal data for this complex: triclinic, space group P1, a=1.198 5(2) n...The title complex of nickel (II) with 3,5-dimethylbenzoic acid, m-methylbenzoic acid and 1,10- phenanthroline was synthesized and characterized. Crystal data for this complex: triclinic, space group P1, a=1.198 5(2) nm, b=1.315 3(2) nm, c=1.531 8(3) nm, α=92.602(3)°, β=103.292(3)°, γ=114.849(3)°, V=2.104 7(6) nm3, Dc=1.361 g·cm-3, Z=2, F(000)=902, final GooF=1.071, R1=0.067 2, wR2=0.155 5. The crystal structure shows that the nickel ion is coordinated with four nitrogen atoms of two 1,10-phenanthroline molecules and two oxygen atoms of one 3,5-dimethyl benzoic acid molecule, forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex was also investigated. CCDC: 286966.展开更多
A complex, NiL(Phen)2(H2O)5 (Phen=1,10 phenanthroline; L=malonate), has been synthesized and chara-cterized. Single crystal X-ray structural determination has been carried out for the complex, the crystal is triclinic...A complex, NiL(Phen)2(H2O)5 (Phen=1,10 phenanthroline; L=malonate), has been synthesized and chara-cterized. Single crystal X-ray structural determination has been carried out for the complex, the crystal is triclinic system, space group P1 with a=1.042 4(4) nm, b=1.061 2(4) nm, c=1.303 8(5) nm, α=85.784(4)°, β=77.232(3)°, γ=72.879(4)°, Mr=611.24, V=1.344 2(8) nm3, Z=2. In this complex, the central metal Ni(Ⅱ) atom is in distorted octa-hedron coordination environment. The molecule is extended to 2D network by the intermolecular π-π stacking interaction.展开更多
A novel dinuclear complex of Ni2(p-PhDTA)(2,2′-bipy)2(H2O)2 ·4H2O (p-PhDTA2-=para-phenylenediamine-N,N,N′,N′-tetraacetate)has been synthesized. The complex was characterized by elemental analysis, IR spectra, ...A novel dinuclear complex of Ni2(p-PhDTA)(2,2′-bipy)2(H2O)2 ·4H2O (p-PhDTA2-=para-phenylenediamine-N,N,N′,N′-tetraacetate)has been synthesized. The complex was characterized by elemental analysis, IR spectra, thermo-analysis and X-ray diffraction. The crystal belongs to triclinic, space group P1 with a=0.976 3(7)nm, b=0.989 41(7) nm, c=1.084 29(8) nm, ?琢=65.661 0(10)°, ?茁=75.234 0(10)°, ?酌=85.616 0(10)°, Z=2, V=0.925 44(12) nm3, Dc=1.568 g·cm-3, R1=0.031 5, wR2=0.081 4. In the complex, the central Ni?髤 ion is coordinated in a distorted octahedral geometry, defined by two carboxyl O atoms and one N atom from same p-PhDTA2-group, two N atoms from 2,2′-bipyridine ligand and one water molecule. The two nickel ?髤 ions are linked by p-PhDTA2-group into a dinuclear structure and extensive hydrogen bonds link the complex into a 2D supramolecular network. CCDC: 294084.展开更多
Nano-scale nickel hydroxide was pre pared by precipitate transformatio n method in the paper￡(r)Effect of rinse pH on the agglomeration degree and elec trochemical performance of nano￡-sc ale Ni ￡¨OH￡(c)￡2 w...Nano-scale nickel hydroxide was pre pared by precipitate transformatio n method in the paper￡(r)Effect of rinse pH on the agglomeration degree and elec trochemical performance of nano￡-sc ale Ni ￡¨OH￡(c)￡2 was investigated￡(r)The mea-surement results of XRD and TEM indic ate that the prepared nano￡-scale Ni ￡¨OH￡(c)2 isβ?-phase,the grain size is in the rang of 10?50nm,and rinse pH exerts a great influence on the agglomera tion degree of nano￡-scale Ni ￡¨OH￡(c)￡2 ￡(r)The agglomeration of material becom es very obvious when rinse pH ￡1/211￡?and the density of nano￡-scale Ni ￡¨OH￡(c)2 is enhanced obviously￡(r)Cyclic voltammetry￡¨CV￡(c)and simulate cells experiment show t hat nano￡-scale Ni ￡¨OH￡(c)2 with suitable agglomeration degree have better electrochemical CV performa nce than those with ideal disperse Ni ￡¨OH￡(c)2 and micron Ni ￡¨OH￡(c)2 ￡?and its proton diffusion coefficie nt is also the highest￡(r)It can elevate the discharge potential platform and prolongs discharge tim e,so the utilization ratio of Ni ￡¨OH￡(c)￡2 is raised￡(r)展开更多
The reaction between palladium(Ⅱ) and chlorophosphonazo mK(CPAmK) was sensitive at pH 1.89.The spectra correction principle was used to investigate the properties of Pd CPAmK complex,which involved the complexation r...The reaction between palladium(Ⅱ) and chlorophosphonazo mK(CPAmK) was sensitive at pH 1.89.The spectra correction principle was used to investigate the properties of Pd CPAmK complex,which involved the complexation ratio,stepwise absorptivity and stability constant.Results showed that the formed complex can be expressed as:Pd(CPAmK) 3,its real (not apparent) absorptivity being 4.70×10 4L·mol -1 ·cm -1 at 619nm and its cumulative stability constant being 1.56×10 17 .展开更多
文摘The title complex of nickel (II) with 3,5-dimethylbenzoic acid, m-methylbenzoic acid and 1,10- phenanthroline was synthesized and characterized. Crystal data for this complex: triclinic, space group P1, a=1.198 5(2) nm, b=1.315 3(2) nm, c=1.531 8(3) nm, α=92.602(3)°, β=103.292(3)°, γ=114.849(3)°, V=2.104 7(6) nm3, Dc=1.361 g·cm-3, Z=2, F(000)=902, final GooF=1.071, R1=0.067 2, wR2=0.155 5. The crystal structure shows that the nickel ion is coordinated with four nitrogen atoms of two 1,10-phenanthroline molecules and two oxygen atoms of one 3,5-dimethyl benzoic acid molecule, forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex was also investigated. CCDC: 286966.
文摘A complex, NiL(Phen)2(H2O)5 (Phen=1,10 phenanthroline; L=malonate), has been synthesized and chara-cterized. Single crystal X-ray structural determination has been carried out for the complex, the crystal is triclinic system, space group P1 with a=1.042 4(4) nm, b=1.061 2(4) nm, c=1.303 8(5) nm, α=85.784(4)°, β=77.232(3)°, γ=72.879(4)°, Mr=611.24, V=1.344 2(8) nm3, Z=2. In this complex, the central metal Ni(Ⅱ) atom is in distorted octa-hedron coordination environment. The molecule is extended to 2D network by the intermolecular π-π stacking interaction.
文摘A novel dinuclear complex of Ni2(p-PhDTA)(2,2′-bipy)2(H2O)2 ·4H2O (p-PhDTA2-=para-phenylenediamine-N,N,N′,N′-tetraacetate)has been synthesized. The complex was characterized by elemental analysis, IR spectra, thermo-analysis and X-ray diffraction. The crystal belongs to triclinic, space group P1 with a=0.976 3(7)nm, b=0.989 41(7) nm, c=1.084 29(8) nm, ?琢=65.661 0(10)°, ?茁=75.234 0(10)°, ?酌=85.616 0(10)°, Z=2, V=0.925 44(12) nm3, Dc=1.568 g·cm-3, R1=0.031 5, wR2=0.081 4. In the complex, the central Ni?髤 ion is coordinated in a distorted octahedral geometry, defined by two carboxyl O atoms and one N atom from same p-PhDTA2-group, two N atoms from 2,2′-bipyridine ligand and one water molecule. The two nickel ?髤 ions are linked by p-PhDTA2-group into a dinuclear structure and extensive hydrogen bonds link the complex into a 2D supramolecular network. CCDC: 294084.
文摘Nano-scale nickel hydroxide was pre pared by precipitate transformatio n method in the paper￡(r)Effect of rinse pH on the agglomeration degree and elec trochemical performance of nano￡-sc ale Ni ￡¨OH￡(c)￡2 was investigated￡(r)The mea-surement results of XRD and TEM indic ate that the prepared nano￡-scale Ni ￡¨OH￡(c)2 isβ?-phase,the grain size is in the rang of 10?50nm,and rinse pH exerts a great influence on the agglomera tion degree of nano￡-scale Ni ￡¨OH￡(c)￡2 ￡(r)The agglomeration of material becom es very obvious when rinse pH ￡1/211￡?and the density of nano￡-scale Ni ￡¨OH￡(c)2 is enhanced obviously￡(r)Cyclic voltammetry￡¨CV￡(c)and simulate cells experiment show t hat nano￡-scale Ni ￡¨OH￡(c)2 with suitable agglomeration degree have better electrochemical CV performa nce than those with ideal disperse Ni ￡¨OH￡(c)2 and micron Ni ￡¨OH￡(c)2 ￡?and its proton diffusion coefficie nt is also the highest￡(r)It can elevate the discharge potential platform and prolongs discharge tim e,so the utilization ratio of Ni ￡¨OH￡(c)￡2 is raised￡(r)
文摘The reaction between palladium(Ⅱ) and chlorophosphonazo mK(CPAmK) was sensitive at pH 1.89.The spectra correction principle was used to investigate the properties of Pd CPAmK complex,which involved the complexation ratio,stepwise absorptivity and stability constant.Results showed that the formed complex can be expressed as:Pd(CPAmK) 3,its real (not apparent) absorptivity being 4.70×10 4L·mol -1 ·cm -1 at 619nm and its cumulative stability constant being 1.56×10 17 .
