Twentyone N,N nitrobenzoyl substituted benzoylthiosemicarbazides were synthesized by addition reaction of nitrophenyl isothiocyanates with aroyl hydrazines and their structures were characterized by 1H NMR, 13 C NM...Twentyone N,N nitrobenzoyl substituted benzoylthiosemicarbazides were synthesized by addition reaction of nitrophenyl isothiocyanates with aroyl hydrazines and their structures were characterized by 1H NMR, 13 C NMR, IR and elemental analysis. The biological tests indicated that these compounds had antibacterial activity against B.subtilis , but no action on E.coli .展开更多
Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400...Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400(PEG-400) as a catalyst in yield of 80%～96%. The compounds were characterized and identified by elemental analysis, IR and 1H NMR.展开更多
The full optimized molecular geometries of 2,4 dihydroxybenzaldehyde thiocarbohydrazone(H2L) and its comp lexes ML(M=Cu?, Zn? and Ni?) were calculated at HF/3 21G, HF/6 31G(d) and B3LYP/6 31G level with Gaussian 98W p...The full optimized molecular geometries of 2,4 dihydroxybenzaldehyde thiocarbohydrazone(H2L) and its comp lexes ML(M=Cu?, Zn? and Ni?) were calculated at HF/3 21G, HF/6 31G(d) and B3LYP/6 31G level with Gaussian 98W program. The geometries of the full optimized for them are all Cs symmetry. Thetheoretical analyses of some of their properties such as bond energy,coordination and biological activity were also made. The biological activity effect is CuL>ZnL >NiL >H2L, which agrees well with the experimental result.展开更多
文摘Twentyone N,N nitrobenzoyl substituted benzoylthiosemicarbazides were synthesized by addition reaction of nitrophenyl isothiocyanates with aroyl hydrazines and their structures were characterized by 1H NMR, 13 C NMR, IR and elemental analysis. The biological tests indicated that these compounds had antibacterial activity against B.subtilis , but no action on E.coli .
文摘Title thioureas have been synthesized by reaction of substituted phenylamines with 1,4- or 1,3-benzenedicarbonyl chloride and ammonium thiocyanate by solid-liquid phase transfer catalysis using polyethylene glycol-400(PEG-400) as a catalyst in yield of 80%～96%. The compounds were characterized and identified by elemental analysis, IR and 1H NMR.
文摘The full optimized molecular geometries of 2,4 dihydroxybenzaldehyde thiocarbohydrazone(H2L) and its comp lexes ML(M=Cu?, Zn? and Ni?) were calculated at HF/3 21G, HF/6 31G(d) and B3LYP/6 31G level with Gaussian 98W program. The geometries of the full optimized for them are all Cs symmetry. Thetheoretical analyses of some of their properties such as bond energy,coordination and biological activity were also made. The biological activity effect is CuL>ZnL >NiL >H2L, which agrees well with the experimental result.
