Received 27 April 2013
aPostgraduate Research Department of Physics, Rajah Serfoji Government College (Autonomous), Thanjavur 613 005, Tamilnadu, India,bDepartment of Chemistry, Tamkang University, Tamsui 25137, Taiwan,cDepartment of Chemistry, Bharathiar University, Coimbatore 641 046, Tamilnadu, India, and dDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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In the title molecule, C23H14N2O2, the atoms in the carbazole unit deviate from planarity [maximum deviation from mean plane = 0.1018 (8) Å]. The pyrrole ring makes dihedral angles of 4.44 (5), 3.84 (5), 2.18 (5) and 56.44 (5)° with the pyran, fused benzene rings and phenyl ring, respectively. In the crystal, pairs of N-HO hydrogen bonds generate R22(14) loops and a C-HN interaction is also found. Molecules are further linked by a number of - interactions [centroid-centroid distances vary from 3.5702 (5) to 3.7068 (6) Å], forming a three-dimensional network.
Data collection: CrysAlis PRO (Agilent, 2012); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL2013 and PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ5318 ).
RJB acknowledges the NSF-MRI program (grant No. CHE0619278) for funds to purchase the X-ray diffractometer.
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