Ma. Castro et al., CRYSTALLINE MONOLAYER OF DODECANOIC ACID ADSORBED ON GRAPHITE FROM N-HEPTANE SOLUTION, JOURNAL OF PHYSICAL CHEMISTRY B, 102(5), 1998, pp. 777-781
The combination of incoherent elastic and quasielastic neutron scatter
ing with neutron diffraction has been used to show the formation of a
two-dimensional crystalline monolayer of dodecanoic acid in equilibriu
m with heptane solution. The molecules in the monolayer are found to b
e lying with their long axes parallel to the surface. This solid monol
ayer melts at approximately 1.15 times the melting point of the bulk s
olution.