# MODELS FOR ANTENNA AND PHOTOREACTION CENTER CHLOROPHYLL a IN GREEN PLANT PHOTOSYNTHESIS, EXCITON TRANSITIONS IN CHLOROPHYLL a ARRAYS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/10043

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 Title: MODELS FOR ANTENNA AND PHOTOREACTION CENTER CHLOROPHYLL a IN GREEN PLANT PHOTOSYNTHESIS, EXCITON TRANSITIONS IN CHLOROPHYLL a ARRAYS Creators: Shipman, Lester L. Issue Date: 1977 Abstract: Exciton transitions have been computed for sixteen distinct cases of two- and three-dimensional arrays of chlorophyll a molecules. The arrays are distinguished by varying packing densities and by constraints applied to the orientation of each of the transition dipoles. Each array consists of 40 antenna chlorophyll a molecules and one P700 chromophore associated with the reaction center of photosystem I. Transition density interactions between antenna chlorophyll a and P700 pushes” the P700 band to lower energy while increasing or decreasing the dipole strength of the P700 band by as much as 50%. The various arrays are discussed in terms of their suitability as models for the arrangement of chlorophyll a in vivo. URI: http://hdl.handle.net/1811/10043 Other Identifiers: 1977-MG-5