J Coupling Constants across Hydrogen Bonds

• S^{3 h}HNCO
  3D S³(H^N) TROSY ^hHNCO pulse sequence
  for measurement of ^2hJ(H^N,CO) and ^3hJ(N,CO)
• 3D ^hHNCO
  3D C E.COSY TROSY ^hHNCO pulse sequence
  for measurement of ^3hJ(H^N,C)