Figure 2
Hydrogen-bond interactions among the (2-carboxyethyl)(phenyl)phosphinic acid molecules in S-configuration polymorph (I). Hydrogen bonds are represented by dashed lines. For clarity, the phenyl rings and H atoms attached to C atoms have been omitted. (P, C, O and H atoms are drawn as purple, black, red and green spheres, respectively, in the electronic version of the paper.) |