Table 1. Hydrogen-bond geometry (, ).

Cg1 and Cg2 are the mid-points of the C10AC11A and C10BC11B bonds, respectively.

DHA	DH	HA	D A	DHA
N1AH1AAO1D i	0.91	1.89	2.75(2)	156
N1AH1ABO2D ii	0.91	1.79	2.677(19)	163
N1BH1BAO1C iii	0.91	1.76	2.66(2)	170
N1BH1BBO2C iv	0.91	1.85	2.75(2)	167
N1AH1AAO1C	0.91	2.57	2.88(3)	101
N1AH1ABO1C	0.91	2.57	2.88(3)	101
N1BH1BBO2D v	0.91	2.63	2.94(3)	101
N1BH1BAO2D v	0.91	2.70	2.94(3)	96
N1AH1ABF3D i	0.91	2.60	3.010(16)	108
N1BH1BBF3C iv	0.91	2.55	2.954(17)	108
C4AH4AAO1C	0.99	2.47	3.12(3)	122
C6AH6AO1D i	1.00	2.42	3.14(3)	129
C4BH4BAO2D v	0.99	2.39	3.08(3)	126
C6BH6BO2C iii	1.00	2.37	3.22(3)	142
C12BH12BN4A vi	0.95	2.71	3.42(4)	133
C4AH4AAF3B	0.99	2.50	3.29(3)	137
C4AH4AAF3C v	0.99	2.69	3.27(3)	118
C5AH5AAF1A	0.99	2.59	3.18(2)	118
C5AH5ABF3D i	0.99	2.70	3.31(2)	120
C6AH6AF3A	1.00	2.35	2.88(2)	112
C4BH4BAF2A	0.99	2.55	3.39(3)	142
C4BH4BAF3D	0.99	2.85	3.34(3)	111
C5BH5BAF2B	0.99	2.51	2.95(2)	107
C7BH7BAF1B	0.99	2.59	3.15(5)	116
C7BH7BA Cg1v	0.99	2.87	3.73(4)	146
C7AH7AA Cg2v	0.99	2.64	3.46(4)	140

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