Table 1. Hydrogen-bond geometry (, ).

DHA	DH	HA	D A	DHA
N2H5Br3i	0.86	2.49	3.332(6)	166
N3H3BBr1	0.86	2.60	3.048(7)	113
N3H3BBr3ii	0.86	2.84	3.581(7)	145
N3H3AO1iii	0.86	2.17	2.977(9)	155
N3H3ABr2	0.86	2.56	3.006(7)	113
O2H11Br3iv	0.89	2.50	3.383(6)	180
O2H12Br1v	0.88	2.61	3.309(7)	137

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