TABLE 3.
Absorption Maxima of Pigments in Solution and in the Fits
| ν̃max (λmax)a | ν̃max (λmax)b | ν̃max (λmax) | |
|---|---|---|---|
| Fxcin MeTHF rt | 22123 (452) | 22168 (451) | |
| 20157 (496) | |||
| Fxc in MeTHF 77 K | 21322 (469) | 19823 (505), | |
| 21618 (463)d | |||
| 20322 (492), | |||
| 19572 (510)e | |||
| Chl-ac Soret rt | 23148 (432) | 22927 (436) | 22927 (436) |
| Chl-ac Qy rt | 15060 (664) | 14838 (674) | 14838 (674) |
| Chl-c2 c Soret rt | 22173 (451) | 22077 (453) | 22077 (453) |
| Chl-c2 c Qy rt | 15848 (631) | 15740 (635) | 15740 (635) |
a
Room temperature (rt) absorption maxima of the pigments in FCP are reported in wavenumbers (ν̃max) and in nm in parentheses (λmax).
b
The maxima of the shifted pigment spectra used to fit to the rt absorption of FCP (Figure 1b).
c
The pigment absorptions are of fucoxanthin in methyl tetrahydrofuran (MeTHF), Chl-a in 80% acetone and Chl- c2 in diethyl ether.
d
The maxima of the shifted 77 K-absorption spectrum of Fx used to fit the 77 K spectrum of FCP in Figure 3a
e
The maxima of the two additional 77 K-Fx spectra used to fit the Stark signal in Figure 4.