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Figure 1
A mol­ecular ellipsoid plot of (I)[link] (30% probability level), showing the complete tetra­meric cation and the three symmetry-related `anionic groups' hydrogen bonded to it. Independent atoms are drawn with principal axis displacement ellipsoids, while their symmetry-related counterparts are shown as open ellipsoids. Heavy broken lines denote inter­actions inter­nal to the `anionic groups' and light broken lines denote those involving the cation. C atoms are not labelled for clarity. The symmetry codes are as in Table 2[link].

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 62| Part 7| June 2006| Pages m297-m302
doi:10.1107/S0108270106020087
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