Abstract
In the crystal structure of the title compound, C18H18O4, the full molecule is generated by the application of an inversion centre. The molecule is essentially planar, with an r.m.s. deviation of 0.017 (1) Å for all non-H atoms. The molecules are linked through intermolecular C—H⋯O interactions to form a molecular sheet parallel to the (02) plane.
Highlights
In the crystal structure of the title compound, C18H18O4, the full molecule is generated by the application of an inversion centre
The molecules are linked through intermolecular C—H O interactions to form a molecular sheet parallel to the (102) plane
R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger
Summary
R factor = 0.044; wR factor = 0.132; data-to-parameter ratio = 22.1. In the crystal structure of the title compound, C18H18O4, the full molecule is generated by the application of an inversion centre. The molecule is essentially planar, with an r.m.s. deviation of 0.017 (1) Å for all non-H atoms. The molecules are linked through intermolecular C—H O interactions to form a molecular sheet parallel to the (102) plane. Data collection: PROCESS-AUTO (Rigaku/MSC, 2004); cell refinement: PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97. (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: CrystalStructure and PLATON (Spek, 2009)
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