The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a squar...The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a square antiprism. The complex can give the characteristic luminescence of Eu3+ upon UV excitation. CCDC: 224879.展开更多
Ths synergistic extraction of lanthanide ions(La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ ,Dy 3+ ) by Bis(1′ phenyl 3′ methyl 5′ Pyrazolone 4′ yl)butanedione [1,4](H 2BPMPBD or H 2A) with Diantipyrinylmethane(DAM) form nitric acid...Ths synergistic extraction of lanthanide ions(La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ ,Dy 3+ ) by Bis(1′ phenyl 3′ methyl 5′ Pyrazolone 4′ yl)butanedione [1,4](H 2BPMPBD or H 2A) with Diantipyrinylmethane(DAM) form nitric acid solution has been studied.The synergistic cofficient for La 3+ was 5.36.The composition of the extracted compound was shown to be LaA·HA·DAM.The pH 1/2 values for La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ and Dy 3+ were 4.43,4.06,3.79, 3.61 and 3.30 respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction also have been calculated.展开更多
文摘The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a square antiprism. The complex can give the characteristic luminescence of Eu3+ upon UV excitation. CCDC: 224879.
文摘Ths synergistic extraction of lanthanide ions(La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ ,Dy 3+ ) by Bis(1′ phenyl 3′ methyl 5′ Pyrazolone 4′ yl)butanedione [1,4](H 2BPMPBD or H 2A) with Diantipyrinylmethane(DAM) form nitric acid solution has been studied.The synergistic cofficient for La 3+ was 5.36.The composition of the extracted compound was shown to be LaA·HA·DAM.The pH 1/2 values for La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ and Dy 3+ were 4.43,4.06,3.79, 3.61 and 3.30 respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction also have been calculated.
