A novel Schiff base was synthesized by the reaction of terephthaldehyde with thiosemicarbazide. The structure was confirmed by elemental analysis, IR, UV-vis, 1H NMR and X-ray single crystal diffractometry and the com...A novel Schiff base was synthesized by the reaction of terephthaldehyde with thiosemicarbazide. The structure was confirmed by elemental analysis, IR, UV-vis, 1H NMR and X-ray single crystal diffractometry and the composition of the compound is identified as C16H26N8O2S2. The preliminary anti-bacterial activity tests showed the Schiff base possesses an inhibition activity towards Escherichia Coli, Staphylococcus aureus and Bacillus subtilis.展开更多
The synthesis of new chromogenic p(o,m,pcarboxylazo)Calixarenes derivatives through the couping of diazotized o,m,paminobenzene carboxylic acid and calixarenes was described.Their structures were comfirmed by IR...The synthesis of new chromogenic p(o,m,pcarboxylazo)Calixarenes derivatives through the couping of diazotized o,m,paminobenzene carboxylic acid and calixarenes was described.Their structures were comfirmed by IR,1H NMR and elemental analysis.Their chromogenic properties and UVVis absorption spectra were investigated under different pH conditions.Experimental results show that the synthesized derivatives can be used as new indicators and host展开更多
Sn(Ⅱ),Pb(Ⅱ) complexes of 1,5 bis(benzophnone) thiocarbohydrazon were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents.The complexes were characterized by elemental analysis,IR,UV ...Sn(Ⅱ),Pb(Ⅱ) complexes of 1,5 bis(benzophnone) thiocarbohydrazon were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents.The complexes were characterized by elemental analysis,IR,UV and molar conductivity etc.展开更多
Some new Schiff base complexes of acetylthioformanilide semicarbazide and bivalent metal ions were synthesized Their compositions were characterized and the antibacterial actvities of these new complexes were examined.
文摘A novel Schiff base was synthesized by the reaction of terephthaldehyde with thiosemicarbazide. The structure was confirmed by elemental analysis, IR, UV-vis, 1H NMR and X-ray single crystal diffractometry and the composition of the compound is identified as C16H26N8O2S2. The preliminary anti-bacterial activity tests showed the Schiff base possesses an inhibition activity towards Escherichia Coli, Staphylococcus aureus and Bacillus subtilis.
文摘The synthesis of new chromogenic p(o,m,pcarboxylazo)Calixarenes derivatives through the couping of diazotized o,m,paminobenzene carboxylic acid and calixarenes was described.Their structures were comfirmed by IR,1H NMR and elemental analysis.Their chromogenic properties and UVVis absorption spectra were investigated under different pH conditions.Experimental results show that the synthesized derivatives can be used as new indicators and host
文摘Sn(Ⅱ),Pb(Ⅱ) complexes of 1,5 bis(benzophnone) thiocarbohydrazon were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents.The complexes were characterized by elemental analysis,IR,UV and molar conductivity etc.
文摘Some new Schiff base complexes of acetylthioformanilide semicarbazide and bivalent metal ions were synthesized Their compositions were characterized and the antibacterial actvities of these new complexes were examined.
