Figure 2.

(A) Static UV/vis-spectrum of PChlide in d4-methanol. The absorption (solid line) and fluorescence (dotted line) spectra (λ_exc = 410 nm) between 500 and 800 nm are given. They are normalized to 1.0, where the absorption of the Q-band is enlarged by the factor of 7 compared with the Soret band. (B) Absorption spectrum of protopheophorbid, separated from PChlide by HPLC (black line), and the absorption and fluorescence spectra (inset, λ_exc = 410 nm) of PChlide with impurities of protopheophorbid (gray line). For comparison, the static spectra of highly pure PChlide are also given (dotted line).