Figure 1
The molecular structures of the constituents of co-crystal (I) showing the atom-labelling scheme and displacement ellipsoids at the 50% probability level: (a) the 3-chlorobenzoic acid molecule and (b) the centrosymmetric N,N′-bis[(pyridin-4-yl)methyl]oxalamide molecule with the unlabelled atoms related by the symmetry operation (i) 1 − x, − y, − z. |