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.
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.
D(+) glucose thiosemicarbazone(Ⅰ) and salicylaldehyde thiosemicarbazone(Ⅱ) are synthesized.The compositions and structures of the compounds have been characterized by the elemental analysis,UV spectra, 1H NMR graph,IR spectra and X ray powder diffraction.The results of indexes to the X ray powder diffraction patterns indicate that the crystal structures of the two compounds belong to triclinic system,(Ⅰ) with a=0.5776nm,b=0.7372nm,c=1.5933nm,α=91.35°,β=94.15°,γ=94.67°, V =0.6741nm 3,Z=2, D cal =1.248g·cm -3 ;(Ⅱ):a=0.7223nm,b=1.0943nm,c=2.8834nm,α=84.16°,β=89.75°,γ=98.38°, V =2.2425nm 3,Z=8, D cal =1.157g·cm -3 .
