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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Investigation of the acid-base properties of mononitro-calix[4]arene with chemometric methods
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Investigation of the acid-base properties of mononitro-calix[4]arene with chemometric methods

机译:化学计量学方法研究单硝基杯[4]芳烃的酸碱性质

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摘要

The acid-base properties of mononitro-calix[4]arene was studied with chemometric methods by measurement of its UV absorbance under different pH. The chemometric method-iterative target transformation factor (ITTFA) was employed to resolve the acid-base fraction curves. Combining with other chemometric methods-principal component analysis (PCA) and evolving factor analysis (EFA), the proton dissociation behavior of the derivative was investigated in detail. The pK(a) values of the derivative were determined and the fraction curves and pure absorbing spectra of each absorbing component were obtained. (c) 2006 Elsevier B.V. All rights reserved.
机译:通过化学计量学方法,通过测量不同pH下的UV吸光度,研究了单硝基杯[4]芳烃的酸碱性质。化学计量学方法-迭代目标转化因子(ITTFA)用于解析酸碱分数曲线。结合其他化学计量学方法(主要成分分析(PCA)和进化因子分析(EFA)),对该衍生物的质子解离行为进行了详细研究。测定该衍生物的pK(a)值,并获得每种吸收组分的分数曲线和纯吸收光谱。 (c)2006 Elsevier B.V.保留所有权利。

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