논문 상세보기
수용액 중의 중금속 (Cd2+, Pb2+, Zn2+, Cu2+)이온 분리를 위한 티오펜 및 퓨란기를 포함하는 리간드들의 합성과 착화합물의 안정도상수 결정 KCI 등재
Synthesis of Ligands Containing Thiophene- or Furan- groups and Determination of Stability Constants of Chelating Compounds for Removal of Heavy Metals (Cd2+, Pb2+, Zn2+, Cu2+) in Aqueous Solution
pp.435-440
The thiophene or furan-containing hexadentate ligands 1,12-bis (2-theophene)-2,5,8,11-tetraazadodecane(Thiotrien ․4HCl) and 1,12-bis (2-furan)-2,5,8,11-tetraazadodecane(Furatrien․4HCl) were synthesized as their tetrahydrochloride salt and characterized by EA, IR, NMR, and Mass spectrum. Their protonation constants (logKnH) and stability constants (logKML) for Cd2+, Pb2+, Zn2+ and Cu2+ ions were determined in aqueous solution by potentiometry and compared with 1,12-bis(2-pyridyl)-2,5,8,11-tetra-azadodecane(Pytrien) of pyridyl-containing ligand. The effect stability constants of ligands and metal ion for removal of heavy metals in aqueous solution were described.
