The acid-base properties of several new calix[4]arene derivatives were studied with chemometric methods by measurement of their UV absorbances under different pH. Resolving the acid-base fraction curves with chemometric methods, the pKa of these derivatives were determined and the fraction curves and pure absorbing spectra of each absorbing component in the calixarene system were obtained. The proton dissociation behavior of these derivatives was also discussed in this paper.
                                    通过测量不同pH值下的紫外吸收率,采用
化学计量学方法研究了多种新型杯[4]
芳烃衍
生物的酸碱性质。通过
化学计量学方法解析酸碱分数曲线,确定了这些衍
生物的pKa,并获得了杯
芳烃体系内每个吸收成分的分数曲线和纯吸收光谱。本文还讨论了这些衍
生物的质子解离行为。