Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation o...Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation of the metal porphyrin and the equilibrium constant of the π\|π coordination with phenothoroline have been measured by using UV\|Vis titration method. The results show that the equilibrium constants decrease in the order of K \-\{CuP\}> K \-\{NiP\}> K \-\{ZnP\}. The vitro anti\|tumor activities of the dibutyltin(Ⅳ) metal porphyrinate has some relation with the ability of aggregation and coordination with ligand of the metal porphyrin.展开更多
The determinations of rate constant ,activation energy and equilibrium constant of complexation reaction between CuTBP,CoTBP and imidazole ,pyridine ,2-methyprdine and 2,4-dimethypridine with spectrophotography were s...The determinations of rate constant ,activation energy and equilibrium constant of complexation reaction between CuTBP,CoTBP and imidazole ,pyridine ,2-methyprdine and 2,4-dimethypridine with spectrophotography were studied in this paper.The influences of basicity of ligand and space sterically hindered on the complexation reaction were discussed and the changes of ultraviolet-visible spectra of complexation reaction were given.展开更多
文摘Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation of the metal porphyrin and the equilibrium constant of the π\|π coordination with phenothoroline have been measured by using UV\|Vis titration method. The results show that the equilibrium constants decrease in the order of K \-\{CuP\}> K \-\{NiP\}> K \-\{ZnP\}. The vitro anti\|tumor activities of the dibutyltin(Ⅳ) metal porphyrinate has some relation with the ability of aggregation and coordination with ligand of the metal porphyrin.
文摘The determinations of rate constant ,activation energy and equilibrium constant of complexation reaction between CuTBP,CoTBP and imidazole ,pyridine ,2-methyprdine and 2,4-dimethypridine with spectrophotography were studied in this paper.The influences of basicity of ligand and space sterically hindered on the complexation reaction were discussed and the changes of ultraviolet-visible spectra of complexation reaction were given.
