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本文指出,对18-冠-6,苯并-15-冠-5和二苯并-18-冠-6及其与硝酸铀酰、钍盐络合物用KBr压片制样,不能得到真实的红外光谱,用石蜡油制样则可获得真实的红外光谱。文中报道了冠醚与铀酰盐、钍盐形成络合物后,特征基团吸收频率的位移情况,并且解释了文献中用KBr压片制得的光谱简化且相似的原因,讨论了冠醚的硝酸铀酰、钍盐络合物用KBr压片制样时在1380cm~(-1)处出现吸收峰的问题。此外,在冠醚的硝酸铀酰、钍盐络合物中,对1500—1560cm~(-1)范围内的吸收峰的归属,我们的见解与文献中的观点不同。
This paper indicates that the KBr pellets of 18-crown-6, benzo-15-crown-5 and dibenzo-18-crown-6 and their complexes with uranyl nitrate and thorium nitrate are not obtained in real life Of infrared spectroscopy, with paraffin oil samples can be obtained by real infrared spectroscopy. In this paper, the displacement of the absorption of the characteristic groups after the formation of complexes of crown ether with uranyl salts and thorium salts is reported. And the reasons for the simplification and similarity of spectra obtained by KBr tablet in the literature are explained. Of uranyl nitrate, thorium salt complex with KBr tablet sample preparation at 1380cm ~ (-1) at the absorption peak. In addition, in the crown ether of uranyl nitrate, thorium salt complexes, 1500-1560cm ~ (-1) absorption peaks within the scope of our opinion and literature point of view is different.