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Normalized transient absorption signals showing (top) excited-state absorption and (bottom) ground-state bleach recovery of d(GC)9·d(GC)9 in H2O (blue) and D2O (red). The inset shows the 250 nm transient for an equimolar mixture of the monomers CMP and GMP in H2O (blue) and D2O (red). (Figure reproduced with permission from ref. 207. Copyright 2009 American Chemical Society.)
