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Kapturkiewicz A. Electrochemical Generation of Excited Intramolecular Charge-Transfer States. ChemElectroChem 2017. [DOI: 10.1002/celc.201600865] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Andrzej Kapturkiewicz
- Institute of Chemistry, Faculty of Sciences; Siedlce University of Natural Sciences and Humanities; 3 Maja 54 08-110 Siedlce Poland
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Rosspeintner A, Angulo G, Vauthey E. Driving force dependence of charge recombination in reactive and nonreactive solvents. J Phys Chem A 2012; 116:9473-83. [PMID: 22894167 DOI: 10.1021/jp306629v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study addresses the free energy dependence of charge recombination following photoinduced bimolecular electron transfer in three different solvents of either inert (acetonitrile and benzyl acetate) or reactive (N,N-dimethylaniline) character. Femtosecond time-resolved fluorescence and transient absorption have been used to determine the time scales for charge recombination. In pure N,N-dimethylaniline, charge recombination is found to be substantially slower than charge separation in a range of driving forces covering 1.5 eV. In all three solvents, the so-called Marcus inverted region is clearly observed for charge recombination. Additionally, the charge recombination step is found to be influenced by the solvent relaxation dynamics. A diffusion-reaction equation approach using an electron transfer model accounting for solvent relaxation is used to rationalize the experimental results.
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Affiliation(s)
- Arnulf Rosspeintner
- Department of Physical Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
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Samori S, Tojo S, Fujitsuka M, Ryhding T, Fix AG, Armstrong BM, Haley MM, Majima T. Emission from Regioisomeric Bis(phenylethynyl)benzenes during Pulse Radiolysis. J Org Chem 2009; 74:3776-82. [DOI: 10.1021/jo900494j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shingo Samori
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Sachiko Tojo
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Torben Ryhding
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Aaron G. Fix
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Brittany M. Armstrong
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Michael M. Haley
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan, and Department of Chemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
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Samori S, Tojo S, Fujitsuka M, Spitler EL, Haley MM, Majima T. Fine-Tuning of Radiolysis Induced Emission by Variable Substitution of Donor-/Acceptor-Substituted Tetrakis(arylethynyl)benzenes. J Org Chem 2008; 73:3551-8. [DOI: 10.1021/jo8001535] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shingo Samori
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Sachiko Tojo
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Eric L. Spitler
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Michael M. Haley
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
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