Fig. 2. (a) Photo-/thermochromic phenomenon of JU101. (b) UV/Vis spectra of JU101, photo irradiated sample JU101-P, and heated sample JU101-H. (c) In situ time dependent EPR spectra of JU101 by UV irradiation. (d) EPR spectra of JU101 and JU101-H.
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