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Excitation Wavelength Dependence of Bacterial Reaction Center Photochemistry. 1. Ground State and Excited State Evolution
The effect of excitation wavelength dependence on the ground state absorption excited state stimulated emission, and the electron transfer process in reaction centers from the R-26 carotenoidless strain of the bacterium Rhodobacter sphaeroides was studied using time-resolved hole-burning spectroscop...
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| Published in: | Journal of physical chemistry (1952) 1995-01, Vol.99 (4), p.1349-1356 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-a359t-ec6d876dc4a202339a8c3caecfbb41743b01985ff47dcd8bc6947f9dc784b9d3 |
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| container_end_page | 1356 |
| container_issue | 4 |
| container_start_page | 1349 |
| container_title | Journal of physical chemistry (1952) |
| container_volume | 99 |
| creator | Peloquin, Jeffrey M Lin, Su Taguchi, Aileen K. W Woodbury, Neal W |
| description | The effect of excitation wavelength dependence on the ground state absorption excited state stimulated emission, and the electron transfer process in reaction centers from the R-26 carotenoidless strain of the bacterium Rhodobacter sphaeroides was studied using time-resolved hole-burning spectroscopy. The P super(*) state was prepared using 838, 858, 878, and 892 nm excitation pulses which had a temporal width of approximately 150 fs and a spectral width of about 60 cm super(-). The majority of the stimulated emission from P super(*) moves to wavelengths greater than 890 nm, within the first 200 fs following excitation. If confirmational subpopulations do exist in the excited state with different rates of electron transfer, they appear to be distinct from the confirmational subpopulations in the ground state which give rise to the distribution of P arrow right P super(*) transition energies. |
| doi_str_mv | 10.1021/j100004a040 |
| format | article |
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W</creatorcontrib><creatorcontrib>Woodbury, Neal W</creatorcontrib><title>Excitation Wavelength Dependence of Bacterial Reaction Center Photochemistry. 1. Ground State and Excited State Evolution</title><title>Journal of physical chemistry (1952)</title><addtitle>J. Phys. Chem</addtitle><description>The effect of excitation wavelength dependence on the ground state absorption excited state stimulated emission, and the electron transfer process in reaction centers from the R-26 carotenoidless strain of the bacterium Rhodobacter sphaeroides was studied using time-resolved hole-burning spectroscopy. The P super(*) state was prepared using 838, 858, 878, and 892 nm excitation pulses which had a temporal width of approximately 150 fs and a spectral width of about 60 cm super(-). The majority of the stimulated emission from P super(*) moves to wavelengths greater than 890 nm, within the first 200 fs following excitation. 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W</creator><creator>Woodbury, Neal W</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>OTOTI</scope></search><sort><creationdate>19950101</creationdate><title>Excitation Wavelength Dependence of Bacterial Reaction Center Photochemistry. 1. Ground State and Excited State Evolution</title><author>Peloquin, Jeffrey M ; Lin, Su ; Taguchi, Aileen K. 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Chem</addtitle><date>1995-01-01</date><risdate>1995</risdate><volume>99</volume><issue>4</issue><spage>1349</spage><epage>1356</epage><pages>1349-1356</pages><issn>0022-3654</issn><eissn>1541-5740</eissn><abstract>The effect of excitation wavelength dependence on the ground state absorption excited state stimulated emission, and the electron transfer process in reaction centers from the R-26 carotenoidless strain of the bacterium Rhodobacter sphaeroides was studied using time-resolved hole-burning spectroscopy. The P super(*) state was prepared using 838, 858, 878, and 892 nm excitation pulses which had a temporal width of approximately 150 fs and a spectral width of about 60 cm super(-). The majority of the stimulated emission from P super(*) moves to wavelengths greater than 890 nm, within the first 200 fs following excitation. If confirmational subpopulations do exist in the excited state with different rates of electron transfer, they appear to be distinct from the confirmational subpopulations in the ground state which give rise to the distribution of P arrow right P super(*) transition energies.</abstract><cop>United States</cop><pub>American Chemical Society</pub><doi>10.1021/j100004a040</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0022-3654 |
| ispartof | Journal of physical chemistry (1952), 1995-01, Vol.99 (4), p.1349-1356 |
| issn | 0022-3654 1541-5740 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6492160 |
| source | American Chemical Society |
| subjects | 400102 - Chemical & Spectral Procedures 400500 - Photochemistry ABSORPTION SPECTRA BACTERIA CHEMISTRY ELECTRON TRANSFER EMISSION ENERGY LEVELS ENERGY-LEVEL TRANSITIONS EXCITED STATES FREQUENCY DEPENDENCE GROUND STATES INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY MICROORGANISMS P STATES PHOTOCHEMISTRY PHOTOSYNTHETIC BACTERIA PHOTOSYNTHETIC REACTION CENTERS SPECTRA STIMULATED EMISSION |
| title | Excitation Wavelength Dependence of Bacterial Reaction Center Photochemistry. 1. Ground State and Excited State Evolution |
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