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. Author manuscript; available in PMC: 2009 Dec 8.
Published in final edited form as: J Phys Chem A. 2009 Apr 30;113(17):4930–4940. doi: 10.1021/jp8093947

Figure 2.

Figure 2

EPR spectra due to 0.1 (top trace, at a relative gain of ×8) and 93.6 mM (middle trace) PDT in 70% glycerol at 293 K. The fit and spectrum are indistinguishable; however, a definite residual is evident due to a significant dipolar interaction; the fractional broadening by spin exchange is Ω(T) = 0.30 ± 0.03.