| 菁染料分子中取代基效应的交替现象 |
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| 引用本文： | 梁德声,赖柱根. 菁染料分子中取代基效应的交替现象[J]. 影像科学与光化学, 1984, 2(3): 35-48. DOI: 10.7517/j.issn.1674-0475.1984.03.35 |
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| 作者姓名： | 梁德声 赖柱根 |
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| 作者单位： | 中国科学院化学研究所 |
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| 摘 要： | 本文利用同系线性规律对菁染料的取代基效应进行了研究.提出菁染料的取代基效应与通常的取代基效应不同,在菁染料分子中取代基效应存在较大的交替现象;根据取代基团的内部结构及其所在位置的关系,推导出一套经验公式,并对菁染料的电子吸收光谱进行了定量计算.本文定量地预测了由苯并硫氮茂环、萘并琉氮茂环和苯并硒氮茂环等组成的菁染料及其衍生物(共一百多个化合物)的电子吸收光谱峰值,与实验值相比,峰值偏离在±5nm内的约占70%左右,在±5-±10nm的约占25%,大于±10nm的约占5%.
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| 收稿时间： | 1983-07-02 |
THE ALTERNATE PHENOMENON OF THE SUBSTITUENT EFFECT IN THE MOLECULE OF CYANINE DYES |
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| LIANG DE-SHENG,LAI CHU-GEN. THE ALTERNATE PHENOMENON OF THE SUBSTITUENT EFFECT IN THE MOLECULE OF CYANINE DYES[J]. Imaging Science and Photochemistry, 1984, 2(3): 35-48. DOI: 10.7517/j.issn.1674-0475.1984.03.35 |
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| Authors: | LIANG DE-SHENG LAI CHU-GEN |
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| Affiliation: | Institute of Chemistry, Academia Sinica |
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| Abstract: | In this paper the substituent effect in the electronic absorption spectra of cyanine dyes by means of the homologous linear equation has been studied.Its substituent effect is different from gerneral substituent effect, due to the presence of strong alternate phenomenon in the molecule of cyanine dyes.An empirical formula of wide applicability has been suggested and applied to Tarious types of cyanine dyes, including thiacarbocyanines, thiadicarbocyanines, thiatri-carbocyanines, selenacarbocyanines, selenadicarbocyanines and selenatricarbocyanines etc.and their derivatives.The wavelengths of the electronic absorption maximum have been calculated for more than one hundred compounds of cyanine dyes.The results indicate that about 70% of the total number of the compounds shows a deviation of ≤±5nm, about 25% with a deviation of ±5nm to ±10nm and about 5% with a deviation of greater than ±10nm. |
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