Table 1. Hydrogen-bond geometry (, ).

DHA	DH	HA	D A	DHA
O2H2AO1i	0.82	2.18	2.789(2)	132
O4H4O3ii	0.82	2.13	2.793(3)	138
C11H11BO3iii	0.97	2.60	3.522(3)	160
C26H26AO2iv	0.97	2.59	3.494(4)	154

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