2D 13C-13C DARR

This is NYSBC standard data set and pulse program for 13C-13C 2D DARR The pulse program has power safety limitations specific for the particular probe. The pulse program DARR_3.2EF750.nysbc, ramp shape file tancn_100_SCALE and include file power_intro.incl are located in the dataset directory.


13C-1H dipolar assisted rotary resonance in magic angle spinning NMR, Takegoshi, K, Nakamura S and Terao, T Chem Phys Lett 2001 (344) pp 631-637 [https://www.sciencedirect.com/science/article/abs/pii/S0009261401007916[(https://www.sciencedirect.com/science/article/abs/pii/S0009261401007916)

Sample heating

To minimized heating of conductive samples, we recommend using an Efree/lowE probe. However, a combination of frictional heating from spinning and RF heating on long pulses on both channel may cause substantial sample heating and temperature gradient across the sample even in an Efree probe. The heating may damage the sample. The heating and temperature gradient across the rotor may substantially compromise the precision of measurements and data fitting.


https://www.ncbi.nlm.nih.gov/pubmed/10868566?dopt=Abstract Heating of samples induced by fast magic-angle spinning, Brus, J., Solid State Nucl. Magn. Reson. 16, 151–160 (2000).

https://onlinelibrary.wiley.com/doi/abs/10.1002/mrc.4450 Heating and temperature gradients of lipid bilayer samples induced by RF irradiation in MAS solid-state NMR experiments, Wang, J., Zhang, Z., Zhao, W., Wang, L. & Yang, J., Magn. Reson. Chem. 54, 753–759 (2016).

https://www.biorxiv.org/content/10.1101/566729v1.full TmDOTP : An NMR- based Thermometer for Magic Angle Spinning NMR Experiments Dongyu Zhang, Boris Itin, Ann E. McDermott; preprinted

Probe and power limitations


Set sweep width in the indirect dimension proportional to the spinning frequency to fold spinning sidebands


The experiments were performed with crystallized u-15N,13C-labeled-N-acetyl-valine and u-15N,13C membrane protein in hydrated lipids.

Processing and analysis


Pulse Sequence and Parameter Set