Absorption cross section at peak wave length of monomeric chlorophyll a in diethyl-ether solution

Value 3.1 Å^2
Organism Unspecified
Reference Schubert A, Beenken WJ, Stiel H, Voigt B, Leupold D, Lokstein H. Excitonic coupling of chlorophylls in the plant light-harvesting complex LHC-II. Biophys J. 2002 Feb82(2):1030-9. p.1032 right column top paragraphPubMed ID11806942
Method Nonlinear absorption spectroscopy (NLA)
Comments Fitting the NLA curve displayed in Fig. 3 yields a ground-state absorption cross section of 1.3(±0.2) 10^- 15 cm2 at 680 nm for LHC-II (and 1.5(±0.2) 10 ^-15 cm2 for excited state absorption). This value is about four times that of monomeric Chl a in diethyl-ether solution (3.1 10^- 16 cm2 at peak wavelength, compare Shipman, 1977 Oscillator and dipole strengths for chlorophyll and related molecules. Photochem. Photobiol. 26: 287–292.).
Entered by Uri M
ID 107056