Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2E—H2EN⋯O3iii	0.86	2.06	2.912 (5)	169
N2F—H2FN⋯O2iv	0.86	1.84	2.693 (5)	172
N2G—H2GN⋯O5v	0.86	1.94	2.798 (5)	175

Symmetry codes: (iii) ; (iv) ; (v) .