Table 1. Hydrogen-bond geometry (, ).

Cg1 and Cg2 are the centroids of the O1/C10C13 furanyl ring and the C1C6 phenyl ring, respectively.

DHA	DH	HA	D A	DHA
C3H3O2i	0.95	2.51	3.457(2)	151
C9H9O2ii	0.95	2.62	3.416(1)	142
C11H11O2ii	0.95	2.51	3.277(2)	138
C6H6Cg1iii	0.95	2.88	3.687(2)	144
C13H13Cg2iv	0.95	2.71	3.519(9)	143

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