Ultrafast time-resolved laser spectroscopic studies of trans-bis(ferrocene-carboxylato)(tetraphenyl-porphyrinato)tin(IV): Intramolecular electron-transfer dynamics
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- Title
- Ultrafast time-resolved laser spectroscopic studies of trans-bis(ferrocene-carboxylato)(tetraphenyl-porphyrinato)tin(IV): Intramolecular electron-transfer dynamics
- Authors
- Jang, JH; Kim, HJ; Kim, HJ; Kim, CH; Joo, T; Cho, DW; Yoon, M
- Date Issued
- 2007-11-20
- Publisher
- KOREAN CHEMICAL SOC
- Abstract
- Photophysical properties of a newly-synthesized porphyrin derivative, trans-bis(ferrocene carboxylato)-(5,10,15,20-tetraphenylporphyrinato)tin(IV) [Sn(TPP)(FcCOO)(2)] were investigated by means of steady-state and fs-time resolved laser spectroscopic techniques, and compared with those of a standard molecule, transdichloro(5,10,15,20-tetraphenyl-porphrinato)tin(IV) [Sn(TPP)Cl-2]. The fluorescence spectrum of Sn(TPP)(FcCOO)(2) was observed to exhibit dual emission bands originating from the S-2-state and the Si-state, which was greatly quenched as compared to those of Sn(TPP)Cl-2. The fs-time resolved fluorescence and transient absorption spectroscopic measurements revealed that the fluorescence quenching is due to formation of the long-lived charge transfer state by intramolecular electron transfer from ferrocene to the S-2-excited SnTPP in addition to the enhanced non-radiative deactivation processes.
- Keywords
- ferrocene-Sn-porphyrin; photoinduced electron transfer; ultrafast laser spectroscopy; TIN(IV) PORPHYRIN; TETRAPHENYLPORPHYRIN; COORDINATION; STATE; FLUORESCENCE; COMPLEXES; ARRAYS; WATER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22979
- DOI
- 10.5012/bkcs.2007.28.11.1967
- ISSN
- 0253-2964
- Article Type
- Article
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 28, no. 11, page. 1967 - 1972, 2007-11-20
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