Table 1. Hydrogen-bond geometry (Å).

D⋯A	D⋯A
Ow1⋯O17	2.964 (7)
Ow1⋯O33	2.889 (8)
Ow2⋯O33	2.815 (7)
Ow2⋯Ow8	2.655 (8)
Ow3⋯O1i	2.957 (4)
Ow3⋯O17	2.821 (6)
Ow4⋯O29	2.764 (7)
Ow4⋯Ow9	2.631 (8)
Ow5⋯Ow7ii	2.682 (8)
Ow5⋯O25iii	2.792 (7)
Ow6⋯O13iv	2.977 (6)
Ow6⋯Ow9ii	2.651 (7)
Ow7⋯O9v	2.768 (7)
Ow7⋯Ow3vi	2.645 (7)
Ow8⋯O13	2.710 (8)
Ow8⋯Ow1	2.635 (7)
Ow9⋯O12v	2.989 (7)
Ow9⋯O21vii	2.743 (8)

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