Four new rare earth solid complexes with 2,6-pyridinedicarboxylic acid and triphenylphosphine oxide were synthesized for the first time.Their structures and properties have been studied by means of elemental analysis,...Four new rare earth solid complexes with 2,6-pyridinedicarboxylic acid and triphenylphosphine oxide were synthesized for the first time.Their structures and properties have been studied by means of elemental analysis,complexometric titrations,IR,TG-DTA and molar conductivity,and the composition of these complexes can be represented as [RE2(L1)3(L2)(H2O)2]·nH2O(RE=Sm,Eu,Tb,Dy;L1 = 2,6-pyridinedicarboxylic acid;L2 = triphenylphosphine oxide).The fluorescence spectra of them have been determined and they all show the characteristic fluorescent properties of the central ions(Sm3+,Eu 3+,Tb3+,Dy3+).展开更多
Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophe...Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophenol and tert-butyl alcohol potassium with nitrogen protection in anhydrous DMF.The structures of the target compounds were characterized by IR,1HNMR and ESI-MS.展开更多
文摘Four new rare earth solid complexes with 2,6-pyridinedicarboxylic acid and triphenylphosphine oxide were synthesized for the first time.Their structures and properties have been studied by means of elemental analysis,complexometric titrations,IR,TG-DTA and molar conductivity,and the composition of these complexes can be represented as [RE2(L1)3(L2)(H2O)2]·nH2O(RE=Sm,Eu,Tb,Dy;L1 = 2,6-pyridinedicarboxylic acid;L2 = triphenylphosphine oxide).The fluorescence spectra of them have been determined and they all show the characteristic fluorescent properties of the central ions(Sm3+,Eu 3+,Tb3+,Dy3+).
文摘Three kinds of 4-(4-aminophenoxy)-2-(alkyl carbamoyl)pyridines were synthesized respectively from three kinds of N-alkyl-4-chloro-2-pyridine carboxamides and p-aminophenol potassium,which were obtained from p-aminophenol and tert-butyl alcohol potassium with nitrogen protection in anhydrous DMF.The structures of the target compounds were characterized by IR,1HNMR and ESI-MS.
