A new phosphotungstate was synthesized by solution-phase synthesis and characterized by Fourier transform infrared spectra analysis and diffuse reflectance spectra analysis.Its primary antibacterial activity was studi...A new phosphotungstate was synthesized by solution-phase synthesis and characterized by Fourier transform infrared spectra analysis and diffuse reflectance spectra analysis.Its primary antibacterial activity was studied.The experimental results show that phosphotungstic acid and chitooligosaccharide come into being a new salt by electrostatic attraction.The phosphotungstate has an excellent antibacterial activity to Escherichia coli,Microzyme,Aspergillus expect Staphylococcus aureus.The antibacterial mechanism was presumed.As a potential antiseptic matter,the phosphotungstate may have an extensive applied foreground.展开更多
A new supramolecular compound, { [2-（2-pyridyl）benzimidazoleH2]2＋.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1：1 HC1 solution, and charact...A new supramolecular compound, { [2-（2-pyridyl）benzimidazoleH2]2＋.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1：1 HC1 solution, and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetfic analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P211c, with a = 16.0397（13）, b = 14.3189（12）, c = 15.6370（13） A, β = 105.8980（10）°, V = 3454.0（5） A3, Z = 4, C24H22Cl10N6Sb2, Mr = 992.48, Dc = 1.909 g/cm3,/z = 2.366 mm-1, S = 1.010, F（000） = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5]2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3＋ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2- form a biquaternion ring structure through the secondary bonding of Sb...Cl. Moreover, the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-（2-pyridyl）benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.展开更多
Two novel complexes of Isoniazid,L-Phenylalanine and Arsenic triiodide were synthesized by the solid phase reaction and characterized by elemental analysis,UV spectra,X-ray powder diffraction,IR spectra and TG-DTA.The...Two novel complexes of Isoniazid,L-Phenylalanine and Arsenic triiodide were synthesized by the solid phase reaction and characterized by elemental analysis,UV spectra,X-ray powder diffraction,IR spectra and TG-DTA.The chemical composition and structures of complexes were determined.And the antibacterial activity of complexes were investigated.展开更多
A supermolecular compound, {8-hydroxyquinolineH44+·SiW12O404-·2H2O} was synthesized by hydrothermal reaction with silico-tungstic acid and 8-hydroxyquinoline. The crystal of the compound belongs to monoclini...A supermolecular compound, {8-hydroxyquinolineH44+·SiW12O404-·2H2O} was synthesized by hydrothermal reaction with silico-tungstic acid and 8-hydroxyquinoline. The crystal of the compound belongs to monoclinic system, space group P21/n, with a=1.282 6(6) nm, b=2.292 7(4) nm, c=2.092 0(6) nm, β=95.495(2)°, Z=4, V=6.124 1(7) nm3, Dc=3.791 g·cm-3, μ=22.568 mm-1, F(000)=6 200, R1=0.029 3, wR2=0.069 3, GOF=1.079. Su-permolecular compound is composed of one SiW12O404- with Keggin structure, four protonated cations of 8-hydroxyquinoline, two hydrones. Thermal analysis results showed that the anionic skeleton construction of heteropoly acid in compound decomposed approximately at 349.0 ℃. CCDC: 622142.展开更多
Glycyrrhizic acid-Cu(Ⅱ) and glycyrrhizic acidFe(Ⅲ)complexes were synthesized by solution-phase synthesis.The complexes were characterized by elemental analysis,FTIR and UV-Vis spectra analysis.The antioxidant activi...Glycyrrhizic acid-Cu(Ⅱ) and glycyrrhizic acidFe(Ⅲ)complexes were synthesized by solution-phase synthesis.The complexes were characterized by elemental analysis,FTIR and UV-Vis spectra analysis.The antioxidant activity of glycyrrhizic acid and its complexes was studied.The experimental results show that glycyrrhizic acid and its Cu(Ⅱ) and Fe(Ⅲ) complexes have an excellent elimination ability to O2-·.However,the antioxidant activity of glycyrrhizic acid is better.展开更多
文摘A new phosphotungstate was synthesized by solution-phase synthesis and characterized by Fourier transform infrared spectra analysis and diffuse reflectance spectra analysis.Its primary antibacterial activity was studied.The experimental results show that phosphotungstic acid and chitooligosaccharide come into being a new salt by electrostatic attraction.The phosphotungstate has an excellent antibacterial activity to Escherichia coli,Microzyme,Aspergillus expect Staphylococcus aureus.The antibacterial mechanism was presumed.As a potential antiseptic matter,the phosphotungstate may have an extensive applied foreground.
基金Supported by the Natural Science Foundation of Henan Province (No. 0611023700)Natural Science Foundation of Education Department of Henan Province (No. 2006150019)
文摘A new supramolecular compound, { [2-（2-pyridyl）benzimidazoleH2]2＋.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1：1 HC1 solution, and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetfic analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P211c, with a = 16.0397（13）, b = 14.3189（12）, c = 15.6370（13） A, β = 105.8980（10）°, V = 3454.0（5） A3, Z = 4, C24H22Cl10N6Sb2, Mr = 992.48, Dc = 1.909 g/cm3,/z = 2.366 mm-1, S = 1.010, F（000） = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5]2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3＋ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2- form a biquaternion ring structure through the secondary bonding of Sb...Cl. Moreover, the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-（2-pyridyl）benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.
文摘Two novel complexes of Isoniazid,L-Phenylalanine and Arsenic triiodide were synthesized by the solid phase reaction and characterized by elemental analysis,UV spectra,X-ray powder diffraction,IR spectra and TG-DTA.The chemical composition and structures of complexes were determined.And the antibacterial activity of complexes were investigated.
文摘A supermolecular compound, {8-hydroxyquinolineH44+·SiW12O404-·2H2O} was synthesized by hydrothermal reaction with silico-tungstic acid and 8-hydroxyquinoline. The crystal of the compound belongs to monoclinic system, space group P21/n, with a=1.282 6(6) nm, b=2.292 7(4) nm, c=2.092 0(6) nm, β=95.495(2)°, Z=4, V=6.124 1(7) nm3, Dc=3.791 g·cm-3, μ=22.568 mm-1, F(000)=6 200, R1=0.029 3, wR2=0.069 3, GOF=1.079. Su-permolecular compound is composed of one SiW12O404- with Keggin structure, four protonated cations of 8-hydroxyquinoline, two hydrones. Thermal analysis results showed that the anionic skeleton construction of heteropoly acid in compound decomposed approximately at 349.0 ℃. CCDC: 622142.
文摘Glycyrrhizic acid-Cu(Ⅱ) and glycyrrhizic acidFe(Ⅲ)complexes were synthesized by solution-phase synthesis.The complexes were characterized by elemental analysis,FTIR and UV-Vis spectra analysis.The antioxidant activity of glycyrrhizic acid and its complexes was studied.The experimental results show that glycyrrhizic acid and its Cu(Ⅱ) and Fe(Ⅲ) complexes have an excellent elimination ability to O2-·.However,the antioxidant activity of glycyrrhizic acid is better.
