Figure 2
The crystal packing of (I) projected on to the ab plane, showing the hydrophilic head (center) and the hydrophobic tail (corner). Hydrogen bonds linking the molecules of (I) form a helix along the c axis. [Symmetry codes: (i) −y + 1, x, z − ; (ii) −x + 1, −y + 1, z − ; (iii) y, −x + 1, z − ; (iv) y, −x + 1, z + .] |