Eleven novel rare earth complexes[RE(HPMαFP)2Pen(NO3)2]NO3((HPMαFP)2 Pen:N,N’ -bis[(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl )α-furylmethylidyne]-o-phenylenediimine;RE =La,Pr,Nd,Sm,Eu,Tb,Dy,Ho,Er,Yb,Y)have been synth...Eleven novel rare earth complexes[RE(HPMαFP)2Pen(NO3)2]NO3((HPMαFP)2 Pen:N,N’ -bis[(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl )α-furylmethylidyne]-o-phenylenediimine;RE =La,Pr,Nd,Sm,Eu,Tb,Dy,Ho,Er,Yb,Y)have been synthesized.They were characterized by IR,UV-visible,1H NMR,13 C NMR,fluorescence,elemental analysis and molar conductance.The resu lts show that the bis-Schiff base ligand is quadridentate and the rare earth i ons are eight-coordinated in the complexes.The antibacterial ex periment indicated that they have hi gh antibacterial activities against S.aureus,B.subtillis,E.coli,E.carotovora and C.flaccumfaciens.展开更多
In this paper, the stability constants of the o Phdn Co complexes and oxygenated complexes were determined by pH potentiometry for the first time. The determined method was verified with the known o Phdn Cu system by ...In this paper, the stability constants of the o Phdn Co complexes and oxygenated complexes were determined by pH potentiometry for the first time. The determined method was verified with the known o Phdn Cu system by comprising the stability constants obtained from experiment results with those in literatures. The calculated results of oxygenated complexes were confirmed by spectrophotometry. All the results are agreed very well, which show the correctness of the determination.展开更多
文摘Eleven novel rare earth complexes[RE(HPMαFP)2Pen(NO3)2]NO3((HPMαFP)2 Pen:N,N’ -bis[(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl )α-furylmethylidyne]-o-phenylenediimine;RE =La,Pr,Nd,Sm,Eu,Tb,Dy,Ho,Er,Yb,Y)have been synthesized.They were characterized by IR,UV-visible,1H NMR,13 C NMR,fluorescence,elemental analysis and molar conductance.The resu lts show that the bis-Schiff base ligand is quadridentate and the rare earth i ons are eight-coordinated in the complexes.The antibacterial ex periment indicated that they have hi gh antibacterial activities against S.aureus,B.subtillis,E.coli,E.carotovora and C.flaccumfaciens.
文摘In this paper, the stability constants of the o Phdn Co complexes and oxygenated complexes were determined by pH potentiometry for the first time. The determined method was verified with the known o Phdn Cu system by comprising the stability constants obtained from experiment results with those in literatures. The calculated results of oxygenated complexes were confirmed by spectrophotometry. All the results are agreed very well, which show the correctness of the determination.
