Orientational and dynamical heterogeneity of rhodamine 6G terminally attached to a DNA helix revealed by NMR and single-molecule fluorescence spectroscopy. by Neubauer, H, Gaiko, N, Berger, S, Schaffer, J, Eggeling, C, Tuma, J, Verdier, L, Seidel, C, Griesinger, C, Volkmer, A