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| 论文编号: |
O120090077 |
| 第一作者所在部门: |
913组 |
| 中文论文题目: |
Ortho effects on the change in electronic absorption spectrum
of pyridinium salts of saturated bromohydrocarbon
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| 英文论文题目: |
Ortho effects on the change in electronic absorption spectrum
of pyridinium salts of saturated bromohydrocarbon
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| 论文题目英文: |
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| 作者: |
宋金玲 龚黎明 冯守爱 赵江红 郑剑锋 朱珍平
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| 论文出处: |
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| 刊物名称: |
Spectrochimica Acta Part A: Molecular and
Biomolecular Spectroscopy
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| 年: |
2009
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| 卷: |
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| 期: |
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| 页: |
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| 联系作者: |
朱珍平 |
| 收录类别: |
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| 影响因子: |
1.51
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| 摘要: |
The quaterisation process of 1,2-dibromoethane and pyridine is in situ traced by electronic absorption spectrum. Two absorption peaks, induced by mono- and bis-pyridinium salt of 1,2-dibromoethane, appear at 429nm and 313 nm, respectively. To explain the phenomena, several kinds of alkyl bromides with special structures were selected and compared by experimental measurement and theoretical calculation. The results indicate that for mono-pyridinium salt of 1,2-dibromoethane, the electron donor property of ortho-bromine group increases the electron cloud density of the carbon atom associated with pyridinium cation, which induces red-shift of absorption wavelength. |
| 英文摘要: |
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| 外单位作者单位: |
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