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The α-phase structure of the title compound, C6H4Cl2, has been accurately redetermined at room temperature. Comparison with 100 K data shows that all different shortest intermolecular contacts (Cl
Cl, ClC, ClH, CC, CH, HH) undergo thermal expansion. A three-centred hydrogen-bonding geometry is considered for some ClH contacts.
Cl, ClC, ClH, CC, CH, HH) undergo thermal expansion. A three-centred hydrogen-bonding geometry is considered for some ClH contacts.Supporting information
 | Crystallographic Information File (CIF) |
 | Structure factor file (CIF format) |
CCDC reference: 129368
