Table 1. Hydrogen-bond geometry (, ).

DHA	DH	HA	D A	DHA
O1H1BO2i	0.84(1)	1.90(2)	2.729(3)	169(6)
O2H2BO3ii	0.84(1)	2.04(2)	2.825(3)	157(5)
O2H2AO1iii	0.84(1)	1.94(2)	2.762(3)	168(5)
O1H1ACl3iv	0.84(1)	2.68(3)	3.389(2)	143(4)
O3H3AO2	0.84(1)	1.95(2)	2.763(3)	163(4)
O3H3BCl1v	0.83(1)	2.43(1)	3.260(2)	173(4)
O4H4BO1vi	0.83(1)	1.77(1)	2.598(3)	176(4)
O4H4AO3vii	0.84(1)	1.80(1)	2.635(3)	176(4)

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