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Figure 2
Crystal packing arrangements for (a) (I)[link] and (b) (II)[link]. H atoms not involved in hydrogen bonds (indicated as dashed lines) have been omitted for clarity. The large shape in (b) represents a small void, calculated by Mercury (Macrae et al., 2008BB12) using a 0.9 Å probe radius and 0.5 Å grid spacing. In (I)[link], there are three π–π inter­actions with (C—)H⋯C distances in the range 2.80–2.86 Å. The corresponding distances in (II)[link] are slightly longer and cover the range 2.86–3.06 Å. Only the major component (the sulfonate) is shown for (II)[link].

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 69| Part 7| June 2013| Pages 778-780
doi:10.1107/S0108270113015011
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