atom_id atom_symbol chemical_shift multiplet coupling_constant 27 H 2.59 28 H 2.59 29 H 2.59 30 H 7.84 31 H 7.54 32 H 7.31 33 H 7.54 34 H 6.13 35 H 6.15 36 H 7.48 37 H 7.02 38 H 5.63 39 H 5.71 40 H 6.1 41 H 6.15