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Köhler, W. and Friedrich, J. and Fischer, R. and Scheer, Hugo (1988): Site-selective spectroscopy and level ordering in C-phycocyanin. In: Chemical Physics Letters, Vol. 143, No. 2: pp. 169-173
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Abstract

We present a combined fluorescence and hole-burning study of the biliprotein C-phycocyanin. Sharp zero-phonon holes compare with a broad structureless fluorescence. This finding is rationalized in terms of the special level structure in this pigment, the fast energy-transfer processes and a lack of correlation of the energies of the emissive states.