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Table 2 1H diffusion values (10 −11m 2s −1at 25°C) for signals resonating in aromatic (9.0 to 6.5 ppm), hydroxyalkyl (4.4 to 2.5 ppm), and alkyl (2 to 0.5 ppm) spectral regions

From: Reduced complexity of multidimensional and diffusion NMR spectra of soil humic fractions as simplified by Humeomics

Samples Aromatic region Hydroxyalkyl region Alkyl region
RES4 3.7 5.9 4.8
F1 4.1 7.0 2.1
F2 6.3 7.4 2.7
F3 7.7 9.6 2.9
F4 5.6 7.2 2.9
F5 5.2a 7.4 2.5
F6 18.3 25.4 2.6
  1. aThe reported value was obtained by excluding the contribute of signals at 7.3, 7.8, and 8.4 ppm, for which the average diffusion value resulted to 9.0.