Table I.
Chemical shifts and coupling constants for GABA.
Resonance | Chemical Shift (ppm)1,2 | J-coupling (Hz)2,3 |
---|---|---|
H1 | 3.0128 | H1-H3 (5.37), H1-H4 (7.13) |
H2 | 3.0128 | H2-H3 (10.58), H2-H4 (6.98) |
H3 | 1.8890 | H3-H5 (7.76), H3-H6 (7.43) |
H4 | 1.8890 | H4-H5 (6.17), H4-H6 (7.93) |
H5 | 2.2840 | |
H6 | 2.2840 |
relative to 1H2O (4.65 ppm).
chemical shifts and coupling constants taken from ref 9.
redundant couplings not listed (Jij = Jji).