Received 22 October 2011
aDepartment of Physics, Sri Ram Engineering College, Chennai 602 024, India,bDepartment of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India, and cOrganic Chemistry Division, Central Leather Research Institute, Adyar, Chennai 600 020, India
Correspondence e-mail: email@example.com
The title compound, C26H33NO7, comprises a racemic mixture of asymmetric molecules containing one stereogenic centre. The dihedral angle between the mean planes of the fused pyran ring and the coumarin ring system is 8.12 (14)°. The molecular structure features a short N-HO contact, which generates an S(6) ring motif. The crystal packing are stabilized by C-HO interactions.
For a related structure, see: Inglebert et al. (2011). For general background and applications of coumarin derivatives, see: Griffiths et al. (1995); Yu et al. (2006). For graph-set notation, see: Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RK2310 ).
The authors gratefully acknowledge Dr Babu Varghese, SAIF, IIT, Chennai, India, for the X-ray intensity data collection and Dr V. Murugan, Head of the Physics Department, RKM Vivekananda College, Chennai, India, for providing facilities in the department to carry out this work.
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