Table 13C NMR chemical shift perturbations upon metal ion-bonding

13C-nuclus
binding nuclus
bond
solvent
free (ppm)
bonded (ppm)
Δ (ppm)
ref.
C8(G)
CdCl2 (N7)
inner-sphere coordination
H2O
-
-
+2.3
1-3
C8(G)
MgCl2 (N7)
not classified
H2O
-
-
+0.5
1,3
C8(G)
ZnCl2 (N7)
inner-sphere coordination
H2O
-
-
+2.5
4
C8(G)
ZnCl2 (N7)
inner-sphere coordination
H2O
-
-
+1.5
4
C8(G)
Pt(en)Cl2 (N7)
inner-sphere coordination
H2O
-
-
+1.1
5
C8(G)
Pt(en)Cl2 (N7)
inner-sphere coordination
H2O
-
-
+0.2
5
N7(G)
NaClO4
eletrostatice interaction
H2O
- (230 mM)
- (800 mM)
+0.1
3
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