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. Author manuscript; available in PMC: 2014 Aug 20.
Published in final edited form as: J Phys Chem B. 1998;102:8257–8265. doi: 10.1021/jp981668r

Figure 1.

Figure 1

EPR Spectra from Ca-depleted samples in the S2′ (A) and S3′-states (B). The S2′-state sample was a Ca-depleted sample with DCMU added. The S3′-state sample had no DCMU added. Both were advanced from the S1′ state by illumination at 273 K. The multiline spectrum in panel A is displayed on an expanded vertical scale (×4.3) to allow comparison with the higher amplitude S3′-state signal in panel B. Spectrometer conditions: microwave frequency, 9.2 GHz; microwave power, 20 mW; modulation amplitude, 20 G; temperature, 8 K.