
A single-crystal of the most commonly used anti-freezing agent, ethylene glycol (mp 261.6 K), was grown in situ at 220 K with the help of a miniature zone melting procedure utilizing an ir-laser beam (Boese & Nussbaumer, 1994). The structure solution and refinement followed standard procedures, in which all hydrogen atoms were treated without constraints. The molecules have a synclinal conformation (torsion angle O1-C1-C2-O2 - 64.4 °) and the packing consists of catamer-like, two-dimensional networks with hydrogen bridges parallel to the [100] plane, O
O distances 2.711 (1) and 2.730 (2) Å and O-H
O angles 176 (2), 171 (2)°.


Supporting information
![]() | Crystallographic Information File (CIF) |
![]() | Structure factor file (CIF format) |
CCDC reference: 130116