organic compounds
The synthesis and crystal structure of 2,5-diamino-3,6-dichloropyrazine, C4H4Cl2N4, are described. The centrosymmetric molecule has an exocyclic C—N distance of 1.362 (3) Å, and a nearly planar amine group [the angles at N sum to 351 (2)°]. Within the crystal, the molecules form a ribbon through two centrosymmetric pairs of N—HN hydrogen-bond interactions, where the NN distance is 3.110 (3) Å.
Supporting information
Crystallographic Information File (CIF) | |
Structure factor file (CIF format) |
CCDC reference: 130180