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. Author manuscript; available in PMC: 2014 Mar 21.
Published in final edited form as: J Phys Chem B. 2013 Mar 8;117(11):3145–3153. doi: 10.1021/jp401806g

Figure 4.

Figure 4

Comparison of distance distributions obtained with model free fits, based on Tikhonov regularization, for [Gd(DOTA)] (black, (a, c)) and [Gd(DTPA)]− (red, (b, d)) with the corresponding distance distributions obtained with a two Gaussian model fit (green). Data are shown for 109 Gd(III) – 68 K1 (a, b) and for 109 Gd(III) – 131 K1 (c, d). Further Gaussian model fit details can be found in the electronic supplementary information.