Hydrogen bond and intermolecular interaction geometries (Å, °) for compounds 2 and 3^a.

D–H⋯A	D–H	H⋯A	D⋯A	∠D–H⋯A
2
N003–H003⋯N004i	0.83 (2)	2.18 (2)	3.007 (2)	176 (2)
C007–H007⋯O002ii	1.00 (2)	2.41 (2)	3.388	165
3
O1–H1B⋯O004	0.850	1.9771	2.773 (7)	155.4
N00B–H00B⋯O004	0.84 (2)	2.00 (2)	2.832 (1)	173 (2)
N00C–H00C⋯O003	0.85 (2)	2.09 (2)	2.932 (1)	169 (2)
N00D–H00D⋯N006i	0.88 (2)	2.17 (2)	3.043 (1)	173 (2)
N008–H008⋯N005i	0.88 (2)	2.10 (2)	2.953 (1)	162 (1)
N00A–H00A⋯N007i	0.87 (2)	2.15 (2)	2.995 (1)	163 (2)
N009–H009⋯N00Ei	0.82 (2)	2.13 (2)	2.938 (1)	173 (2)
C00U–H00U⋯N00Fii	0.950	2.527	3.318 (2)	140.72
C012–H012⋯C00Mii	0.950	2.822	3.542 (2)	133.38
C014–H014⋯O1iii	0.950	2.532	3.352 (8)	144.5
π⋯π*	—	—	3.678	—

^aSymmetry transformations used to generate equivalent atoms for 2: (i) , , ; (ii) , , ; for 3: (i) , , ; (ii) , , ; (iii) −x, −y +1, −z +1; *For π⋯π interactions d(D⋯A) = Cg⋯Cg and for C–H⋯π interactions d(H⋯A) = H⋯Cg, where Cg = centroid of the aromatic pyridine rings.