260
Cyclic Amines. 15 N Chemical Shifts (δ in ppm relative to CH 3 NO 2 )
Shifts induced by protonation (δ amine hydrochloride - δ amine ) are given in parentheses.
Aromatic Amines. 15 N Chemical Shifts and Coupling Constants (δ in
ppm relative to CH 3 NO 2 , J in Hz)
NH 2
O
NH 2
NO 2
H
N
H
N
H
N
H
N
O
H
N
N
H
H
N
N
N
N
-393.3
(neat)
-342.6
(+2.2)
(MeOH)
-339.4
(+7.9)
(MeOH)
-326.0
(+2.2)
(MeOH)
-348.5
(+13.7)
(MeOH)
-349.8
(neat)
-320.3
1 J NH -82.3
3 J NH -1.9
(DMSO)
-326.7
(acetone)
-325.8
(neat)
-316.9
(acetone)
-324.5
(neat)
-318.2
(acetone)
-302.7
(acetone)
-315.8
(DMSO)
-320.0
(DMSO)
-324.0
(neat)
1 J NH -78.0
(acetone)
-332.2
(neat)
-288.8
(DMSO)
-346.4
(dioxane)
-310.3
(cyclohexane)
-354.9
(CHCl 3 )
-341.4
(+10.4)
(MeOH)
-325.7
(+10.7)
(MeOH)
N
NH 2
HN
N
H
N
NH 2
O
NH 2
NO 2
NH 2
NH 2
NH 2
Cl
NH 2
Cl
N
-9.0
Heteronuclear NMR Spectroscopy
6