Localized Emitting State and Energy Transfer Properties of Quadrupolar Chromophores and (Multi)Branched Derivatives
文献类型：期刊论文
| 作者 | Yan, Linyin1,2; Chen, Xudong1,2; He, Qingguo1,2; Wang, Yingying1,2; Wang, Xuefei1,2; Guo, Qianjin1,2; Bai, Fenglian1,2; Xia, Andong1,2; Aumiler, Damir1,3; Vdovic, Silvije1,3 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY A
 |
| 出版日期 | 2012-08-30 |
| 卷号 | 116期号:34页码:8693-8705 |
| ISSN号 | 1089-5639 |
| DOI | 10.1021/jp305407s |
| 英文摘要 | In order to better understand the nature of intramolecular charge and energy transfer in multibranched molecules, we have synthesized and studied the photophysical properties of a monomer quadrupolar chromophore with donor-acceptor-donor (D-A-D) electronic push-pull structure, together with its V-shaped dimer and star-shaped trimers. The comparison of steady-state absorption spectra and fluorescence excitation anisotropy spectra of these chromophores show evidence of weak interaction (such as charge and energy transfer) among the branches. Moreover, similar fluorescence and solvation behavior of monomer and branched chromophores (dimer and trimer) implies that the interaction among the branches is not strong enough to make a significant distinction between these molecules, due to the weak interaction and intrinsic structural disorder in branched molecules. Furthermore, the interaction between the branches can be enhanced by inserting pi bridge spacers (-C=C- or -C C-) between the core donor and the acceptor. This improvement leads to a remarkable enhancement of two photon cross sections, indicating that the interbranch interaction results in the amplification of transition dipole moments between ground states and excited states. The interpretations of the observed photophysical properties are further supported by theoretical investigation, which reveal that the changes of the transition dipole moments of the branched quadrupolar chromophores play a critical role in observed the two-photon absorption (2PA) cross-section for an intramolecular charge transfer (ICT) state interaction in the multibranched quadrupolar chromophores. |
| 语种 | 英语 |
| WOS记录号 | WOS:000308119800005 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48863]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Qianjin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci BNLMS, Beijing 100190, Peoples R China 3.Inst Phys, Zagreb 10000, Croatia 4.Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan |
| 推荐引用方式 GB/T 7714 | Yan, Linyin,Chen, Xudong,He, Qingguo,et al. Localized Emitting State and Energy Transfer Properties of Quadrupolar Chromophores and (Multi)Branched Derivatives[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2012,116(34):8693-8705. |
| APA | Yan, Linyin.,Chen, Xudong.,He, Qingguo.,Wang, Yingying.,Wang, Xuefei.,...&Lin, ShengHien.(2012).Localized Emitting State and Energy Transfer Properties of Quadrupolar Chromophores and (Multi)Branched Derivatives.JOURNAL OF PHYSICAL CHEMISTRY A,116(34),8693-8705. |
| MLA | Yan, Linyin,et al."Localized Emitting State and Energy Transfer Properties of Quadrupolar Chromophores and (Multi)Branched Derivatives".JOURNAL OF PHYSICAL CHEMISTRY A 116.34(2012):8693-8705. |
入库方式： OAI收割
来源：化学研究所
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