Received 14 October 2013
aDepartment of Studies and Research in Chemistry, Tumkur University, Tumkur, Karnataka 572 103, India,bDepartment of Studies and Research in Physics, U.C.S., Tumkur University, Tumkur, Karnataka 572 103, India,cDepartment of Studies and Research in Chemistry, U.C.S., Tumkur University, Tumkur, Karnataka 572 103, India, and dDepartment of Studies in Physics, University of Mysore, Manasagangotri, Mysore, India
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In the title compound, C10H5F5O2, the C=O bonds are syn to one another. In the crystal, molecules are linked into C(9) chains parallel to  through weak C-HO interactions, with the O atom adjacent to the -CF3 group acting as the acceptor.
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB7151 ).
The authors acknowledge the IOE X-ray diffractometer Facility, University of Mysore, Mysore, for the data collection. KEM and SS acknowledge Tumkur University, Tumkur, for providing laboratory facilities.
Bruker (2009). APEX2, SAINT-Plus and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466-470.
Manoj Kumar, K. E., Sreenivasa, S., Shivaraja, G. & Madhu Chakrapani Rao, T. (2013). Molbank, M803, doi:10.3390/M803.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.