The gamma-form of n-eicosanol

In the crystal of the title compound, C20H42O, the molecules are packed in layers parallel to the (100) plane. The alkyl chains are parallel to the [< 30(20)over bar>] direction and these molecular chains are hydrogen-bonded i nto chains parallel to the c axis. All C-C bonds of the alkyl chain show an antiperiplanar (trans) conformation, with a slight deviation from the idea l value (180 degrees) in the C-C bonds close to the hydrogen bonds. The len gth of the alkyl chain is 27.92 (2) Angstrom and the tilt angle is 59.7 (2) degrees.