Abstract
The title compound, H3O+·C6H2N3O7 −, consists of one picrate anion and one oxonium cation. The oxonium cation is located on a crystallographic twofold axis and both its H atoms are disordered, each over two symmetry-equivalent positions with occupancy ratios of 0.75. The picrate anions are also located on twofold axes bisecting the phenolate and p-nitro groups. π–π interactions between the rings of the picrates [centroid-to-centroid distances of 3.324 (2) Å] connect the anions to form stacks along the a-axis direction. The stacks are further joined together by the protonated water molecules through hydrogen bonds to form two-dimensional sheets extending parallel to the ab plane. The sheets are stacked on top of each other along the c-axis direction and connected through C—H⋯O interactions between the CH groups of the benzene rings and the picrate nitro groups, with C⋯O distances of 3.450 (2) Å.
Highlights
After further thorough investigation, five articles are retracted as a result of problems with the data sets or incorrect atom assignments
H atoms treated by a mixture of independent and constrained refinement max = 0.21 e Å3
Symmetry codes: (ii) −x+1/2, −y+1/2, −z+1/2; (iii) x, −y, −z+1/2
Summary
Acta Crystallographica Section E between 2004 and 2011. After further thorough investigation (see Harrison et al., 2010), five articles are retracted as a result of problems with the data sets or incorrect atom assignments. Details of articles to be retracted, in order of publication. Diaqua-1O,3O-di--cyanido-1:22N:C;2:32C:N-dicyanido-22C-bis{4,40 -dibromo-2,20 [propane-1,2-diylbis(nitrilomethylidyne)]diphenolato}-14O,N,N0 ,O0 ;34O,N,N0 ,O0 -1,3diiron(III)-2-nickel(II)
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