Received 15 March 2009
aDepartment of Chemistry, Bharathiar University, Coimbatore 641 046, Tamilnadu, India,bPG Research Department of Physics, Rajah Serfoji Government College (Autonomous), Thanjavur 613 005, Tamilnadu, India, and cDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
Correspondence e-mail: email@example.com
The molecule of the title compound, C17H13NO2, is nearly planar, the r.m.s. deviation for all non-H atoms excluding the two methyl C atoms being 0.089 Å. Intermolecular N-HO and C-HO hydrogen bonds are found in the crystal structure. C-H interactions are also found. The H atoms of the methyl group attached to the benzene ring are disordered equally over two positions.
For the synthesis of 2-methyl- and 2-phenyl-pyrano[2,3-a]carbazol-4-ones and their derivatives, see: Kavitha & Rajendra Prasad (2003). For related crystal structures, see: Sridharan et al. (2007); Sridharan et al. (2008a,b); Sridharan et al. (2008).
Data collection: CrysAlis CCD (Oxford Diffraction, 2008); cell refinement: CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED; 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: PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WN2315 ).
We acknowledge the UGC, New Delhi, India, for the award of Major Research Project grant No. F.No.31-122/2005. MS thanks the UGC, New Delhi, India, for the award of a research fellowship. RJB acknowledges the NSF MRI program (grant No. CHE-0619278) for funds to purchase an X-ray diffractometer.
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