无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2006年
9期
1651-1656
,共6页
1%10-菲罗啉%过渡金属%稀土%稳定常数
1%10-菲囉啉%過渡金屬%稀土%穩定常數
1%10-비라람%과도금속%희토%은정상수
1,10-phenanthroline%transition metal%rare earth%stability constant
合成了2个新型的多齿配体:2,9-二-[1′-(2″-苯并咪唑基)-2′-氮杂-正丙基]-1,10-菲罗啉(L1)和2,9-二-[2′-(2″-苯并咪唑基)-3′-氮杂-正丁基]-1,10-菲罗啉(L2)并且用元素分析和1H NMR谱作了表征.在25±0.1℃,运用pH电位滴定法对这2个新的配体及其与过渡金属离子M(Ⅱ)(M=Co,Ni,Cu,Zn)和稀土金属离子Ln(Ⅲ)(Ln=La,Nd,Sm,Eu,Gd)的配合物进行了热力学稳定性研究.结果表明配体和金属离子的配位比为1:1,但是,这2个系列的配合物在稳定性方面存在很大差异.
閤成瞭2箇新型的多齒配體:2,9-二-[1′-(2″-苯併咪唑基)-2′-氮雜-正丙基]-1,10-菲囉啉(L1)和2,9-二-[2′-(2″-苯併咪唑基)-3′-氮雜-正丁基]-1,10-菲囉啉(L2)併且用元素分析和1H NMR譜作瞭錶徵.在25±0.1℃,運用pH電位滴定法對這2箇新的配體及其與過渡金屬離子M(Ⅱ)(M=Co,Ni,Cu,Zn)和稀土金屬離子Ln(Ⅲ)(Ln=La,Nd,Sm,Eu,Gd)的配閤物進行瞭熱力學穩定性研究.結果錶明配體和金屬離子的配位比為1:1,但是,這2箇繫列的配閤物在穩定性方麵存在很大差異.
합성료2개신형적다치배체:2,9-이-[1′-(2″-분병미서기)-2′-담잡-정병기]-1,10-비라람(L1)화2,9-이-[2′-(2″-분병미서기)-3′-담잡-정정기]-1,10-비라람(L2)병차용원소분석화1H NMR보작료표정.재25±0.1℃,운용pH전위적정법대저2개신적배체급기여과도금속리자M(Ⅱ)(M=Co,Ni,Cu,Zn)화희토금속리자Ln(Ⅲ)(Ln=La,Nd,Sm,Eu,Gd)적배합물진행료열역학은정성연구.결과표명배체화금속리자적배위비위1:1,단시,저2개계렬적배합물재은정성방면존재흔대차이.
Two novel multidentate ligands: 2,9-bis-[1′-(2″-benzimidazolyl)-2′-aza-n-propyl]-1,10-phenanthroline (L1) and 2,9-bis-[2′-(2″-benzimidazolyl)-3′-aza-n-butyl]-1,10-phenanthroline (L2) were synthesized and characterized by elemental analysis and 1H NMR spectroscopy. The thermodynamic properties of the ligands and their complexes with transition metal ions M(Ⅱ) (M=Co, Ni, Cu and Zn) and rare earth metal ions Ln(Ⅲ) (Ln=La, Nd,Sm, Eu, Gd) have been investigated at 25 ± 0.1 ℃ using pH titration. The results show that the coordination ratio of the ligands to the metal ions is 1:1. However, there is great difference in stabilities between two series of complexes.
