Table 3.

Spin–spin coupling constants ^2hJ(O–O), ^1hJ(H–O), and ¹J(O–H) (Hz) for the O–H^…O hydrogen bond in complexes C₃H₄O₂:Acid.

Complex	2hJ(O–O)	1hJ(H–O)	1J(O–H)
Isolated monomer C3H4O2	11.5	7.9	−77.7
Isolated ts	24.7	−19.7	−19.7
C3H4O2:LiH at C=O	10.2	7.9	−79.2
at O–H	13.7	7.4	−81.3
ts	24.0	−14.5	−31.2
C3H4O2:LiF at C=O	10.5	8.1	−78.6
at O–H	13.5	7.4	−82.2
ts	24.1	−15.5	−30.0
C3H4O2:BeH2 at C=O	10.0	7.8	−81.4
at O–H	14.3	6.4	−89.7
ts	23.8	−12.8	−41.4
C3H4O2:BeF2 at C=O	9.6	7.7	−82.1
at O–H	15.4	5.8	−88.7
ts	23.6	−10.3	−47.1