CAJ | 학술논문

本文合成了8-羟基喹啉取代的二氧四胺开链配体L并进行了红外、元素分析、核磁和质谱表征。在(25±0.1)℃,I=0.1mol·dm-3NaNO3条件下，运用pH电位滴定技术测定了双核混配体系Cu(Ⅱ)(或Co(Ⅱ)-L-5-取代邻菲罗啉合铜(Ⅱ)配合物的稳定常数，并从滴定数据、物种分布曲线和文献结果对配合物可能的配位方式进行了讨论。我们发现在Cu(Ⅱ)-L-5-取代邻菲罗啉体系的质子化过程中，开链二氧四胺与Cu(Ⅱ)存在微弱配位，而邻菲罗啉和8-羟基喹啉与过渡金属离子的结合力远大于开链二氧四胺，因此在金属离子与配体比合适的情况下能稳定存在双核或异双核配位化合物。在质子化过程中，直线自由能关系尚成立而在多核混配体系中，直线自由能关系不存在，这说明在如此复杂的体系中很可能存在有趣的配体-配合物-金属离子的协同作用。
본문합성료8-간기규람취대적이양사알개련배체L병진행료홍외、원소분석、핵자화질보표정。재(25±0.1)℃,I=0.1mol·dm-3NaNO3조건하，운용pH전위적정기술측정료쌍핵혼배체계Cu(Ⅱ)(혹Co(Ⅱ)-L-5-취대린비라람합동(Ⅱ)배합물적은정상수，병종적정수거、물충분포곡선화문헌결과대배합물가능적배위방식진행료토론。아문발현재Cu(Ⅱ)-L-5-취대린비라람체계적질자화과정중，개련이양사알여Cu(Ⅱ)존재미약배위，이린비라람화8-간기규람여과도금속리자적결합력원대우개련이양사알，인차재금속리자여배체비합괄적정황하능은정존재쌍핵혹이쌍핵배위화합물。재질자화과정중，직선자유능관계상성립이재다핵혼배체계중，직선자유능관계불존재，저설명재여차복잡적체계중흔가능존재유취적배체-배합물-금속리자적협동작용。
C-functionalized dioxotetraamine ligand L, 6-(5＇-(8＇-hydroxyquinolinic)-methylene)-1,4,8,11-tetraazaundecane-5,7-dione, containing two independent chelating groups, was synthesized and characterized by elemental analysis, 1H MNR, IR and MS spectra. At 25.0 +0.1℃,I=0.1mol·dm-3 NaNO3, pH titration has been performed to study the stability properties of L-5-substituted-1, 10-phentharnroline-Cu (Ⅱ) with proton, copper (Ⅱ) and cobalt (I), respectively. The ternary complexes have been show to possess interesting property due to the coordination interaction of the three chelating groups, 5-substituted-1,10-phenanthroline, 8-hydroxyquinoline and dioxotetraamine. In addition, the possible coordination structures for the titration species have been suggested on the basis of titration results and literature report.