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Figure 2
The arrangement of (a) the dianions in (I)[link] within the ribbons running in the [101] direction, and (b) the trianions in (II)[link] within the infinite chains along the c axis. Dashed lines indicate O—H⋯O and N—H⋯O hydrogen bonds. Symmetry codes are given in Tables 2[link] and 4[link].

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 65| Part 6| May 2009| Pages o261-o266
doi:10.1107/S0108270109010683
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