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. 2015 Apr 15;10(4):e0123595. doi: 10.1371/journal.pone.0123595

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© 2015 Štarha et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 2 — Time-dependent (A and C—fresh solutions; B and D—after 24 h of standing at room temperature under ambient light) 400 MHz ¹H NMR spectra (N1–H region of 4Braza) as observed before (A and B) and after (C and D) UVA irradiation (20 min, λ_max = 365 nm) of complex 5 dissolved in the DMF-d7/H₂O solution (1:1, v/v).