|
1
|
BLANK A, GALILI T, LEVANON H. Triplet porphyrins as donors in intramolecular electron transfer and their intermolecular interaction with free radicals. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1002/1099-1409(200101)5:1<58::aid-jpp297>3.0.co;2-b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Porphyrins and related compounds are basic moieties which upon photoexcitation produce paramagnetic transients important to many processes in biology, material science and light–energy conversion. This short review demonstrates the application of time-resolved EPR spectroscopy to two processes in which the photoexcited singlet and/or triplet are involved: (1) intramolecular electron transfer in photoexcited donor–acceptor systems embedded in liquid crystals, where the porphyrins are the electron donors attached to different types of acceptors; and (2) intermolecular magnetic interactions between photoexcited porphyrin triplets and free radicals. In both systems the electron spin plays an important part with regards to the route of the magnetic interactions involved.
Collapse
Affiliation(s)
- A. BLANK
- Department of Physical Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - T. GALILI
- Department of Physical Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - H. LEVANON
- Department of Physical Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| |
Collapse
|
|
2
|
Lee CH, Guo J, Chen LX, Mandal BK. Novel Zinc Phthalocyanine-Benzoquinone Rigid Dyad and Its Photoinduced Electron Transfer Properties. J Org Chem 2008; 73:8219-27. [DOI: 10.1021/jo801293s] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chi-Hang Lee
- Department of Biological, Chemical and Physical Sciences, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois 60616, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Jiangchang Guo
- Department of Biological, Chemical and Physical Sciences, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois 60616, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Lin X. Chen
- Department of Biological, Chemical and Physical Sciences, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois 60616, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Braja. K. Mandal
- Department of Biological, Chemical and Physical Sciences, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois 60616, Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| |
Collapse
|
|
3
|
Electron donor–acceptor compounds: exploiting the triptycene geometry for the synthesis of porphyrin quinone diads, triads, and a tetrad. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)01052-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|