view article
Figure 4
Part of the crystal packing of (I)[link], showing the formation of the centrosymmetric tetra­molecular R66(40) and dimeric R22(12) ring motifs (Etter, 1990BB5; Etter et al., 1990BB6; Bernstein et al., 1995BB1) through C—H⋯O hydrogen bonds, resembling a square-grid mesh. Hydrogen bonds are shown as dashed lines and H atoms not involved in hydrogen bonding have been omitted for clarity. Selected atoms are labelled, primarily to provide a key for coding of the atoms. [Symmetry codes: (i) 2-x, 2-y, −z; (ii) −[{1\over 2}] + x, [{3\over 2}-y], −z.]

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 66| Part 2| January 2010| Pages m35-m39
doi:10.1107/S0108270109055449
Follow Acta Cryst. C
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS