References:
K. Takegoshi, S. Nakamura and T. Terao (2001) Chem. Phys. Lett. 344 631-637. (Link to Article)
K. Takegoshi, S. Nakamura and T. Terao (2003) J. Chem. Phys. 118 2325-2341. (Link to Article)

Minimum labelling: ¹³C

Dimensions: 2

DARR stands for Dipolar Assisted Rotational Resonance. Magnetization is transferred from hydrogen to ¹³C nuclei. From here it is transferred to other ¹³C nuclei which are close in space.

This experiment is similar to the PDSD, but at long mixing times the transfer of magnetisation is more efficient and so you can expect to see more cross peaks.This experiment is useful in order to obtain inter-residue contacts for assignment and structure calculations.