A Revisit to the Orthogonal Bodipy Dimers: Experimental Evidence for the Symmetry Breaking Charge Transfer-Induced Intersystem Crossing
文献类型：期刊论文
| 作者 | Liu, Ya2,3; Zhao, Jianzhang4; Iagatti, Alessandro1,5; Bussotti, Laura5; Foggi, Paolo1,5,6; Castellucci, Elena5; Di Donato, Mariangela1,5; Han, Ke-Li2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2018-02-08 |
| 卷号 | 122期号:5页码:2502-2511 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.7b10213 |
| 文献子类 | Article |
| 英文摘要 | A series of Bodipy dimers with orthogonal conformation were prepared. The photophysical properties were studied with steady-state and time-resolved transient spectroscopies. We found the triplet-state quantum yield is highly dependent on the solvent polarity in the orthogonally linked symmetric Bodipy dimers, and the intersystem crossing (ISC) is efficient in solvents with moderate polarity. The photoinduced symmetry-breaking charge transfer (SBCT) in polar solvents was confirmed by femtosecond transient absorption spectroscopy, with the charge separation (CS) kinetics on the order of a few picoseconds and the charge recombination (CR) process occurring on the nanosecond time scale in dichloromethane. These observations are supported by the calculation of the charge separated state (CSS) energy levels, which are high in nonpolar solvents, and lower in polar solvents, thus the CR-induced ISC has the largest driven force in solvents with moderate polarity. These results clarify the mechanism of SOCT-ISC in the orthogonally symmetric Bodipy dimers. The acquired information, relating molecular structure and ISC property, will be useful for devising new strategies to induce ISC in heavy atom-free organic chromophores. |
| WOS关键词 | SINGLET OXYGEN GENERATION ; EXCITED TRIPLET-STATE ; PHOTOINDUCED ELECTRON-TRANSFER ; HALOGEN-FREE PHOTOSENSITIZERS ; VISIBLE-LIGHT ; PHOTODYNAMIC THERAPY ; ENERGY-TRANSFER ; UP-CONVERSION ; SYSTEMS ; ENHANCEMENT |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000424955400006 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168852]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zhao, Jianzhang; Di Donato, Mariangela; Han, Ke-Li |
| 作者单位 | 1.INO, Largo Enrico Fermi 6, I-50125 Florence, Italy 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, E-208 West Campus,2 Ling Gong Rd, Dalian 116024, Peoples R China 5.LENS European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Fiorentino, Italy 6.Univ Perugia, Dipartimento Chim, Via Elce Sotto 8, I-06123 Perugia, Italy |
| 推荐引用方式 GB/T 7714 | Liu, Ya,Zhao, Jianzhang,Iagatti, Alessandro,et al. A Revisit to the Orthogonal Bodipy Dimers: Experimental Evidence for the Symmetry Breaking Charge Transfer-Induced Intersystem Crossing[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(5):2502-2511. |
| APA | Liu, Ya.,Zhao, Jianzhang.,Iagatti, Alessandro.,Bussotti, Laura.,Foggi, Paolo.,...&Han, Ke-Li.(2018).A Revisit to the Orthogonal Bodipy Dimers: Experimental Evidence for the Symmetry Breaking Charge Transfer-Induced Intersystem Crossing.JOURNAL OF PHYSICAL CHEMISTRY C,122(5),2502-2511. |
| MLA | Liu, Ya,et al."A Revisit to the Orthogonal Bodipy Dimers: Experimental Evidence for the Symmetry Breaking Charge Transfer-Induced Intersystem Crossing".JOURNAL OF PHYSICAL CHEMISTRY C 122.5(2018):2502-2511. |
入库方式： OAI收割
来源：大连化学物理研究所
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