Figure 3
Twin domains viewed down the monoclinic b-axis, with alternate layers colored in white, blue, green and magenta. The layers have a width of two hydrogen-bonded molecules (see Fig. 2) and have hydrophobic faces. The second lattice (left) has a row of molecules in the blue layer in common with that of the white layer in the first lattice (right). The second domain is generated by a twofold rotation around c and a shift over 1/2a. The pseudo-orthorhombic unit cell is shown in red. The hydrophobic interactions between the layers are almost completely conserved across the twin interface. |