Ek. Morris et al., DISORDER OF METHYL-GROUPS WITH TEMPERATURE IN 2 MOLECULAR-CRYSTALS BYNEUTRON-DIFFRACTION, Physica. B, Condensed matter, 234, 1997, pp. 74-75
The analysis of the density distribution of protons of methyl groups o
btained by neutron diffraction on single crystals of 4-methylpyridine
N-oxide and 2,6-dimethylpyrazine is reported.