Table 1. Hydrogen-bond geometry (, ).

Cg2, Cg3 and Cg4 are the centroids of rings C4C8/C13, C8C13 and C14C19, respectively.

DHA	DH	HA	D A	DHA
O3H3ON1	0.926(18)	1.718(18)	2.5578(12)	149.3(16)
C7H7AN2i	0.95	2.56	3.4976(16)	171
C12H12AO3ii	0.95	2.46	3.3663(15)	161
N2H2N Cg3iii	0.898(17)	2.609(17)	3.1906(11)	123.2(12)
C3H3A Cg2iii	1.00	2.84	3.5842(12)	131
C20H20C Cg4iv	0.98	2.93	3.7892(16)	146
C21H21C Cg4v	0.98	2.85	3.6296(17)	137

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