Figure 2.
The d/l values for aspartic acid adsorbed on
calcite crystals nos. 1 and 2, which display a finely terraced surface
structure, differ for different faces. The R-type faces
generally display d/l > 1, whereas L-type
faces display d/l < 1. Rhombohedral
(1
0
)-type cleavage faces (denoted C) show no
significant d or l selectivity. The horizontal
dashed line represents the observed 0.9948 ± 0.0015
d/l value for the aspartic acid experimental
solution, based on four separate derivatizations of a 0.05 M
solution.