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13C-13C Correlation spectra at 700 MHz. a) one-bond radio frequency driven recoupling (RFDR) correlation showing the one-bond cross-peak assignments. The spinning frequency is ωr/2π=9.8 kHz, and the sample temperature is 85 K b) Short and long-range correlations with dipolar assisted rotary resonance (DARR) and long-range correlation assignments. The spinning frequency is ωr/2π=7.8 kHz, and the sample temperature is 85 K.
