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Figure 6
A partial packing diagram for (II)[link], viewed along the c axis, showing the formation of helical columns. C—H⋯O inter­actions are shown as dashed lines. H atoms not involved in inter­actions have been omitted for clarity. Selected atoms of the mol­ecules present in the asymmetric unit are labelled, primarily to provide a key for the coding of the atoms. [Symmetry codes: (i) −x + 2, −y, z + [{1\over 2}]; (ii) −x + 2, −y, z − [{1\over 2}]; (iii) x + [{1\over 2}], −y + [{1\over 2}], z.]

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 68| Part 8| July 2012| Pages o302-o307
doi:10.1107/S0108270112029800
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