Donatas Zigmantas
Professor
2D electronic spectroscopy of the B800-B820 LH3 light-harvesting complex
Author
Summary, in English
Two-dimensional optical spectroscopy is a potent tool for studying correlations among different vibrational and electronic transitions as well as other nonlinear properties of molecules and materials. This chapter utilizes recently developed phase-stabilized two-dimensional electronic Fourier-transform spectroscopy to probe electronic couplings among different chromophores and explore the distribution of instantaneous molecular environments in photosynthetic light-harvesting complexes. Light harvesting is a crucial part of photosynthesis, ensuring efficient adaptation of photosynthetic organisms to environments with low light conditions. The elegant ring-shaped light-harvesting antennae of purple bacteria are taken into consideration, which exhibit nearly unity efficiency of energy transfer to the photochemical reaction center. A study on the B800-B820 (LH3) complex, a spectroscopic variant of the B800-B850 LH2 peripheral light-harvesting complex from purple bacteria Rhodopseudomonas acidophila strain 7050, is also described in the chapter.
Publishing year
2006-12-01
Language
English
Pages
372-376
Publication/Series
Femtochemistry VII
Links
Document type
Book chapter
Publisher
Elsevier
Status
Published
ISBN/ISSN/Other
- ISBN: 9780444528216