Figure 3.

Absorbance (a, d, g, and j) and CD (b, e, h, and k) spectral fits with corresponding structures (c, f, i, and l) of the adjacent dimer, transverse dimer, trimer, and tetramer aggregates, respectively. Experimental data sets are shown as black open circles, while KRM theoretical fits are given as red curves. All samples were prepared at 10 μM DNA concentration in a 1× TAE buffer solution with 15 mM MgCl₂ added, PAGE purified, and normalized by the resulting DNA concentrations (~0.5−2.5 μM). Fluorescence measurements were obtained by exciting the samples at their respective absorption maxima.