Unveiling excited state energy transfer and charge transfer in a host/guest coordination cage
文献类型：期刊论文
| 作者 | Zhang, Rui-Ling1,2; Yang, Yang1; Yang, Song-Qiu1; Han, Ke-Li1 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2018-01-28 |
| 卷号 | 20期号:4页码:2205-2210 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/c7cp06577a |
| 文献子类 | Article |
| 英文摘要 | Host-guest charge transfer (HGCT) plays a key role in applications from solar energy conversion to photocatalysis. Herein, a HGCT system, a pillared Pt(II) metallacage with encapsulated coronene was synthesized and the ultrafast excited-state dynamics were investigated by combination of femtosecond transient absorption spectroscopy, nanosecond transient emission spectrocopy and quantum chemistry calculations. Two significant ultrafast dynamic processes were unveiled: (i) charge transfer from a singlet local excited ((LE)-L-1) state associated with the coronene moiety to a (1)HGCT state with tau = 9.5 ps; and (ii) triplet-triplet energy transfer from a high (3)HGCT state to a (LE)-L-3 state with tau = 139.5 ps. The resulting long-lived species, the lowest (LE)-L-3 and (3)HGCT states eventually decay to the ground state in microsecond time scales of 5.2 and 43.4 mu s respectively. Moreover, a clear mechanism depicting the main excited-state decay pathways connecting the initial photoexcited transients with the resulting species was proposed. |
| WOS关键词 | PHOTOPHYSICAL PROPERTIES ; ELECTRON-TRANSFER ; ACETYLIDE COMPLEXES ; SEPARATION ; RELAXATION ; GUESTS ; METALLACYCLES ; FLUORESCENCE ; EMISSIONS ; FRAMEWORK |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000423505500008 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168622]  |
| 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 | Han, Ke-Li |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Rui-Ling,Yang, Yang,Yang, Song-Qiu,et al. Unveiling excited state energy transfer and charge transfer in a host/guest coordination cage[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2018,20(4):2205-2210. |
| APA | Zhang, Rui-Ling,Yang, Yang,Yang, Song-Qiu,&Han, Ke-Li.(2018).Unveiling excited state energy transfer and charge transfer in a host/guest coordination cage.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,20(4),2205-2210. |
| MLA | Zhang, Rui-Ling,et al."Unveiling excited state energy transfer and charge transfer in a host/guest coordination cage".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20.4(2018):2205-2210. |
入库方式： OAI收割
来源：大连化学物理研究所
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