Table 2. Hydrogen-bond geometry (, ).

DHA	DH	HA	D A	DHA
N1H1NO1i	0.88	1.89	2.762(8)	169
N2H2NO2ii	0.88	1.90	2.711(8)	152
N3H3NO3iii	0.88	2.01	2.773(10)	144
N3H3NO6iv	0.88	2.59	3.124(9)	120
O5H5OO1	0.84	1.75	2.555(7)	161
O7H7OO2	0.84	1.73	2.463(7)	145
O9H9OO3	0.84	1.70	2.526(7)	167
C1H1O4i	0.95	2.38	3.227(10)	148
C4H4O5	0.95	2.53	3.174(9)	126
C6H6O7ii	0.95	2.26	3.051(9)	140
C7H7O8ii	0.95	2.66	3.530(9)	153
C9H9O3v	0.95	2.58	3.227(9)	126
C11H11O6iv	0.95	2.46	3.076(11)	123
C11H11O9vi	0.95	2.55	3.159(9)	122
C12H12O6vii	0.95	2.49	3.302(11)	143
C14H13O4viii	0.95	2.60	3.405(10)	143
C15H15O8iii	0.95	2.66	3.608(10)	178

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