| 对-二苯氨基苯基硼酸的光谱及光物理行为研究 |
| |
| 引用本文： | 庞月红,双少敏,李仲辉,Wong Man-shing.对-二苯氨基苯基硼酸的光谱及光物理行为研究[J].山西大学学报(自然科学版),2005,28(2):186-188. |
| |
| 作者姓名： | 庞月红 双少敏 李仲辉 Wong Man-shing |
| |
| 作者单位： | 1. 山西大学,化学化工学院,山西,太原,030006
2. 香港浸会大学,化学系,香港 |
| |
| 基金项目： | 国家自然科学基金(20172035)，山西省归国留学人员基金 |
| |
| 摘 要： | 利用紫外可见吸收光谱和荧光光谱对新合成的化合物：对-二苯氨基苯基硼酸(DPBA，三苯胺衍生物)在不同极性介质中的光谱、光物理行为进行了研究，并利用Lippert-Mataga方程计算了该化合物基态和激发态偶极矩间的差值△μ=3．0D．实验结果表明，溶剂极性对DPBA的吸收光谱峰位和峰形产生相对较小的影响，而使DPBA荧光光谱发生较大的红移，荧光峰的半峰宽变宽且基态和激发态间的偶极矩差值△μ变大，表明了该化合物具有典型的分子内电荷转移(ICT)的特性．
|
| 关 键 词： | 分子内电荷转移 稳态荧光 偶极矩 溶剂效应 |
| 文章编号： | 0253-2395(2005)02-0186-03 |
| 修稿时间： | 2004年5月31日 |
Study on Photophysical Properties of P-(diphenylamino)-phenyl Boronic Acid |
| |
| PANG Yuehong,SHUANG Shaomin,LI Zhonghui,Wong Man-shing.Study on Photophysical Properties of P-(diphenylamino)-phenyl Boronic Acid[J].Journal of Shanxi University (Natural Science Edition),2005,28(2):186-188. |
| |
| Authors: | PANG Yuehong SHUANG Shaomin LI Zhonghui Wong Man-shing |
| |
| Institution: | PANG Yuehong~1,SHUANG Shaomin~ |
| |
| Abstract: | The photophysical properties of a new compound,p-(diphenylamino) phenyl boronic acid(DPBA),in various solvents at room temperature were characterized by the UV-Vis and fluoresent spectra.The magnitude of change in the dipole moment was also calculated based on the Lippert-Matage equation.DPBA increased on dipole moment of 3.0D units on excitation to the lowest singlet state.The bathochromic shift on the emisson spectra,the broad halfwidth of the fluorescence band and the increase in the excited state dipole moment occurred.These results indicated the compound has the intramolecular charge transfer (ICT) character in the emitting singlet state of DPBA. |
| |
| Keywords: | imtramolecular charge transfer steady-state fluorescence dipole moment solvent effect |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
