CAJ | 학술논문

用光谱法研究了Ni[(C4H9O)2PS]2与咪唑、邻菲咯啉在乙醇溶液中的加合反应，测定了反应的平衡常数lgβn及加合分子数n，在32℃时，与咪唑反应lgK1=2.85±0.07，lgβ2=5.69±0.09；与邻菲咯啉反应lgβ2=7.68±0.11.比较了咪唑与吡啶类化合物的平衡常数值的大小，得到了平衡常数值不仅与氮碱的pKa值有关，而且和其空间效应有关的重要结论.
용광보법연구료Ni[(C4H9O)2PS]2여미서、린비각람재을순용액중적가합반응，측정료반응적평형상수lgβn급가합분자수n，재32℃시，여미서반응lgK1=2.85±0.07，lgβ2=5.69±0.09；여린비각람반응lgβ2=7.68±0.11.비교료미서여필정류화합물적평형상수치적대소，득도료평형상수치불부여담감적pKa치유관，이차화기공간효응유관적중요결론.
Adductive reaction of Ni[(C4H9O)2PS2]2 with Imidazole and 1,10-Phenanthroline in Ethanol has been studied spectrophotometrically.The equilibrium constants with Imidazole and 1, 10-phenanthroline are found to be lgK1=2.85±0.07,lgβ2=5.69±0.09 and lgβ2=7.68±0.11 respectively.The equilibrium constants of Imidazole have been compared with the equilibrium constants of pyridine and some of its derivatives. The results have demonstrated that equilibrium constants are concerned with not only pKa of nitrogen bases but also the space effect of nitrogen bases.