| Assignation of Acidic Dissociation Constants of Dimethoxyphenylfluorone and Dibromodimethylaminophenylfluorone |
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| 引用本文： | Chen Tian-Ming, Wang Dong-Jin, Xie Zeng-Hong (Department of Chemistry,Fuzhou University,Fuzhou,350002 ). Assignation of Acidic Dissociation Constants of Dimethoxyphenylfluorone and Dibromodimethylaminophenylfluorone[J]. 结构化学, 1996, 0(4) |
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| 作者姓名： | Chen Tian-Ming Wang Dong-Jin Xie Zeng-Hong (Department of Chemistry Fuzhou University Fuzhou 350002 ) |
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| 作者单位： | Department of Chemistry，Fuzhou University，Fuzhou，350002 |
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| 摘 要： | ＡｓｓｉｇｎａｔｉｏｎｏｆＡｃｉｄｉｃＤｉｓｓｏｃｉａｔｉｏｎＣｏｎｓｔａｎｔｓｏｆＤｉｍｅｔｈｏｘｙｐｈｅｎｙｌｆｌｕｏｒｏｎｅａｎｄＤｉｂｒｏｍｏｄｉｍｅｔｈｙｌａｍｉｎｏｐｈｅｎｙｌｆｌｕｏｒｏｎｅＣｈｅｎＴｉａｎ－Ｍｉｎｇ；ＷａｎｇＤｏｎｇ－...
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| 关 键 词： | dissociation constant assignation organic reagent spectrophotometry Hückel molecular orbital method |
Assignation of Acidic Dissociation Constants of Dimethoxyphenylfluorone and Dibromodimethylaminophenylfluorone |
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| Chen Tian-Ming, Wang Dong-Jin, Xie Zeng-Hong. Assignation of Acidic Dissociation Constants of Dimethoxyphenylfluorone and Dibromodimethylaminophenylfluorone[J]. Chinese Journal of Structural Chemistry, 1996, 0(4) |
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| Authors: | Chen Tian-Ming Wang Dong-Jin Xie Zeng-Hong |
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| Abstract: | The acidic dissociation constants of dimethoxyhenylfluorone (DMOPF)and dibromo-dimethylaminophenylflurone(Br_2-DMAPF) were determined from a spectrophotometric study, with the results as follows:DMOPF: pk_1=2. 68 pk_2=6. 79 pk_3=9.25 pk_4=12. 14 Br_2-DMAPF: pk_1=2.08 pk_2=4. 12 pk_3=9. 02 pk_45=11.02 The assignation for the possibly occurred shapes in media of various acidity has been accomplished by comparing the calculated results of π-electronic distribution and maximum absorption wave lengths from Huckel molecular orbital(HMO) method with those from the spectrophotometric ones. |
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| Keywords: | dissociation constant assignation organic reagent spectrophotometry Hückel molecular orbital method |
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