The deamination reaction of \Cl 2 was studied by using the non-isothermal TG method. The data from the non-isothermal experiments were analyzed by means of ACHAR and COATS-REDFERN methods. It was found that the integr...The deamination reaction of \Cl 2 was studied by using the non-isothermal TG method. The data from the non-isothermal experiments were analyzed by means of ACHAR and COATS-REDFERN methods. It was found that the integral kinetic equation and differential coefficient kinetic eqution for the deamination of \l 2 were f（α）=\ -1, g（α）=α+（1-α）ln （1-α）, activation energies were E 1=81.223 6 kJ/mol, E 2=189.634 2 kJ/mol; pre-exponential factor A 1=4.10×10 9/s, A2=7.02×10 22/s, and kinetic compensation effect equation ln A1=3.519 6E 1+5.378 2; ln A 2=3.457 3E 2+4.804 5.展开更多
Two new zinc（Ⅱ） complexes, [Zn2L2Ch].2[ZnL（CH3OH）Cl2] 1 and [ZnL2（NO3）2] 2, were synthesized by reacting ZnX2.nH2O （X = Cl^-, NO3^-） and a Schiff base ligand 2-[（4-methylphenylimino）methyl]-6-methoxyphenol ...Two new zinc（Ⅱ） complexes, [Zn2L2Ch].2[ZnL（CH3OH）Cl2] 1 and [ZnL2（NO3）2] 2, were synthesized by reacting ZnX2.nH2O （X = Cl^-, NO3^-） and a Schiff base ligand 2-[（4-methylphenylimino）methyl]-6-methoxyphenol （C15HIsNO2, L） which was obtained by the condensation of o-vanillin （2-hydroxy-3-methoxybenzaldehyde） with p-toluidine. Both 1 and 2 were characterized by single-crystal X-ray diffraction technique, elemental analysis, molar conductance, FT-IR, UV-Vis, IH-NMR spectra and thermogravimetrie analysis. The Schiff base ligand and its zinc（Ⅱ） complexes have been tested in vitro to evaluate their antibacterial activity against bacteria, viz., Escherichia Coli, Staphylococcus aureus and Bacillus Subtilis. The results show that these complexes have higher activity than the corresponding free Schiff base ligand against the same bacteria.展开更多
文摘The deamination reaction of \Cl 2 was studied by using the non-isothermal TG method. The data from the non-isothermal experiments were analyzed by means of ACHAR and COATS-REDFERN methods. It was found that the integral kinetic equation and differential coefficient kinetic eqution for the deamination of \l 2 were f（α）=\ -1, g（α）=α+（1-α）ln （1-α）, activation energies were E 1=81.223 6 kJ/mol, E 2=189.634 2 kJ/mol; pre-exponential factor A 1=4.10×10 9/s, A2=7.02×10 22/s, and kinetic compensation effect equation ln A1=3.519 6E 1+5.378 2; ln A 2=3.457 3E 2+4.804 5.
文摘Two new zinc（Ⅱ） complexes, [Zn2L2Ch].2[ZnL（CH3OH）Cl2] 1 and [ZnL2（NO3）2] 2, were synthesized by reacting ZnX2.nH2O （X = Cl^-, NO3^-） and a Schiff base ligand 2-[（4-methylphenylimino）methyl]-6-methoxyphenol （C15HIsNO2, L） which was obtained by the condensation of o-vanillin （2-hydroxy-3-methoxybenzaldehyde） with p-toluidine. Both 1 and 2 were characterized by single-crystal X-ray diffraction technique, elemental analysis, molar conductance, FT-IR, UV-Vis, IH-NMR spectra and thermogravimetrie analysis. The Schiff base ligand and its zinc（Ⅱ） complexes have been tested in vitro to evaluate their antibacterial activity against bacteria, viz., Escherichia Coli, Staphylococcus aureus and Bacillus Subtilis. The results show that these complexes have higher activity than the corresponding free Schiff base ligand against the same bacteria.
