Charge-Transfer Emission in Organoboron-Based Biphenyls: Effect of Substitution Position and Conformation
文献类型：期刊论文
| 作者 | Wang, Chen1; Xu, Qing-Wen1; Zhang, Wei-Ning1; Peng, Qian2; Zhao, Cui-Hua1 |
| 刊名 | JOURNAL OF ORGANIC CHEMISTRY
 |
| 出版日期 | 2015-11-06 |
| 卷号 | 80期号:21页码:10914-10924 |
| 英文摘要 | A series of organoboron-based biphenyls o,o'-NMe2, o,p'-NMe2, p,p'-NMe2, which contain an electron-donating NMe2 and an electron-accepting BMes(2) groups at o,o'-, o,p'-, p,p'-positions of biphenyl skeleton, respectively, as well as o,o'-NBn2, which contains more bulky NBn2 rather than NMe2, were fully characterized to explore the effect of structural modification on the intramolecular charge-transfer emissions. In addition to significant effect of substitution position on photophysical properties, remarkable influence of conformation was also observed for o,o'-substituted compounds. The emission is substantially blue-shifted as conformation changes from the location of NMe2 and BMes(2) at same side of biphenyl axis with a close B center dot center dot center dot N distance, and thus direct B center dot center dot center dot N electronic interaction in o,o'-NMe2, to the location of NBn2 and BMes(2) on two opposite sides in o,o'-NBn2. And o,o'-NMe2 exhibits the longest emission wavelength, but the shortest absorption wavelength, and thus largest Stokes shift among these four organoboron-based biphenyls in both solution and solid state. The theoretical calculations demonstrated that the unique structure of o,o'-NMe2, in which boryl and amino located at the same side of biphenyl axis with close B center dot center dot center dot N distance and direct B center dot center dot center dot N electronic interaction, is helpful to stabilize the lowest singly occupied orbital in the exited state. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29230]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Shandong Univ, Sch Chem & Chem Engn, Key Lab Special Funct Aggregated Mat, Minist Educ, Jinan 250100, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chen,Xu, Qing-Wen,Zhang, Wei-Ning,et al. Charge-Transfer Emission in Organoboron-Based Biphenyls: Effect of Substitution Position and Conformation[J]. JOURNAL OF ORGANIC CHEMISTRY,2015,80(21):10914-10924. |
| APA | Wang, Chen,Xu, Qing-Wen,Zhang, Wei-Ning,Peng, Qian,&Zhao, Cui-Hua.(2015).Charge-Transfer Emission in Organoboron-Based Biphenyls: Effect of Substitution Position and Conformation.JOURNAL OF ORGANIC CHEMISTRY,80(21),10914-10924. |
| MLA | Wang, Chen,et al."Charge-Transfer Emission in Organoboron-Based Biphenyls: Effect of Substitution Position and Conformation".JOURNAL OF ORGANIC CHEMISTRY 80.21(2015):10914-10924. |
入库方式： OAI收割
来源：化学研究所
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