Sugar conformation can be established from dipole(CH)-dipole(CH) cross correlated relaxation obtained from a forward directed quantitative HCCH-TOCSY ( 99JACS1945 , 99JACS1956 and 99JB241 ) and HCCH-E.COSY ( 01JACS7364 ) experiments.Hydrogen bonds in RNA base pairs have been investigated from DD(NH)-DD(NH) cross correlated relaxation ( 01CPC41 and 03JB259-26).
Also see DD-DD cross-correlation in proteins