Table 2.
methyl β-maltoside (1) | methyl α-cellobioside (2) | methylβ-cellobioside (3) | ||||
---|---|---|---|---|---|---|
Calc | Expt | Calc | Expt | Calc | Expt | |
rH1,H2 | 3.06 | 2.41 | 2.41b [9.8]f | 3.06 | ||
rH1,H3 | 2.52 | 2.52a [6.6] | 3.76 | 2.52 | ||
rH1′,H3 | 3.21 | >3.07 [<2.0] | 3.40 | 3.59 [0.9]f | 3.58 | |
rH1′,H4 | 2.32 | 2.45 [7.8] | 2.29 | 2.27 [13.9]f | 2.28 | 2.26 [13.5] |
2.19 {8.9} | ||||||
rH2,H4 | 2.57 | 2.49 | 2.54 | 2.54c [6.7] | ||
2.54c {3.7} |
Reference distance from MD simulations of compounds 1–3 respectively.
Effective proton-proton distances r (Å) calculated according to equation 11.
Experimental 1H,1H cross-relaxation rates σT-ROE (square brackets) and σNOE (curly brackets) ×105 s−1 for 1 at 700 MHz and ×102 s−1 for 2 and 3 at 600 MHz.
From reference 30, Larsson et al.