Table 6. Enrichment ratios (ER) for the acid, di­amide and co-crystal.

Inter­action	Acid	Di­amide	Co-crystal
H⋯H	1.02	0.97	1.02
O⋯H/H⋯O	1.22	1.46	1.30
C⋯C	2.30	3.60	2.55
C⋯H/H⋯C	0.75	0.66	0.71
N⋯H/H⋯N	1.06	1.20	0.84