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Article: Low-lying excited states of light-harvesting system II in purple bacteria
Title | Low-lying excited states of light-harvesting system II in purple bacteria |
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Authors | |
Issue Date | 2004 |
Publisher | American Physical Society. The Journal's web site is located at http://pre.aps.org |
Citation | Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics), 2004, v. 69 n. 3, article no. 032902 How to Cite? |
Abstract | The low-lying excited states of a B850 ring of Rhodospirillum (Rs.) molischianum are determined accurately by a semiempirical INDO/S method. Results obtained are found to fit extremely well with a Frenkel exciton model with long-range dipolar interactions, and the spatial size of the electron-hole pair is confirmed to fall predominantly within one bacteriochlorophyll with a small leakage to its nearest neighbors. More importantly, the nearest neighbor exciton coupling constants are found to be close to those evaluated directly from dimers, and thus, an existing discrepancy between calculated results of dimers and B850 rings has been resolved. |
Persistent Identifier | http://hdl.handle.net/10722/168296 |
ISSN | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhao, Y | en_US |
dc.contributor.author | Ng, MF | en_US |
dc.contributor.author | Chen, G | en_US |
dc.date.accessioned | 2012-10-08T03:17:10Z | - |
dc.date.available | 2012-10-08T03:17:10Z | - |
dc.date.issued | 2004 | en_US |
dc.identifier.citation | Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics), 2004, v. 69 n. 3, article no. 032902 | - |
dc.identifier.issn | 1063-651X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/168296 | - |
dc.description.abstract | The low-lying excited states of a B850 ring of Rhodospirillum (Rs.) molischianum are determined accurately by a semiempirical INDO/S method. Results obtained are found to fit extremely well with a Frenkel exciton model with long-range dipolar interactions, and the spatial size of the electron-hole pair is confirmed to fall predominantly within one bacteriochlorophyll with a small leakage to its nearest neighbors. More importantly, the nearest neighbor exciton coupling constants are found to be close to those evaluated directly from dimers, and thus, an existing discrepancy between calculated results of dimers and B850 rings has been resolved. | en_US |
dc.language | eng | en_US |
dc.publisher | American Physical Society. The Journal's web site is located at http://pre.aps.org | en_US |
dc.relation.ispartof | Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics) | - |
dc.rights | Copyright 2004 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevE.69.032902 | - |
dc.title | Low-lying excited states of light-harvesting system II in purple bacteria | en_US |
dc.type | Article | en_US |
dc.identifier.email | Chen, G:ghc@yangtze.hku.hk | en_US |
dc.identifier.authority | Chen, G=rp00671 | en_US |
dc.description.nature | published_or_final_version | en_US |
dc.identifier.doi | 10.1103/PhysRevE.69.032902 | en_US |
dc.identifier.scopus | eid_2-s2.0-42749105051 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-42749105051&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 69 | en_US |
dc.identifier.issue | 3 | en_US |
dc.identifier.spage | article no. 032902 | - |
dc.identifier.epage | article no. 032902 | - |
dc.identifier.isi | WOS:000220729100085 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Zhao, Y=8579132600 | en_US |
dc.identifier.scopusauthorid | Ng, MF=37161861600 | en_US |
dc.identifier.scopusauthorid | Chen, G=35253368600 | en_US |
dc.identifier.issnl | 1063-651X | - |