Table 6 Metal ion affinities (MIA) of α-fructose, β-fructose and neotame with divalent cations using B3LYP/6-311 + G (d, p) basis set (water).

From: Modeling of neotame and fructose thermochemistry: Comparison with mono and divalent metal ions by Computational and experimental approach

Divalent ions

α-fructose

β-fructose

Neotame

Position 1

Position 2

Position 3

Position 1

Position 2

Position 3

Position 1

Position 2

Position 3

Mg2+ (kcal mol−1)

−411.02

−405.99

−403.49

−410.39

−410.39

−407.88

−405.99

−406.63

−412.63

Ca2+ (kcal mol−1)

−363.96

−355.79

−355.79

−353.29

−358.94

−362.70

−357.05

−358.31

−362.07

Fe2+ (kcal mol−1)

−421.69

−426.08

−421.69

−422.94

−433.94

−428.59

−423.57

−424.82

−414.78

Zn2+ (kcal mol−1)

−440.51

−441.14

−438.63

−439.88

−444.90

−444.90

−439.88

−439.88

−432.35