Received 17 September 2012
aSchool of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa,bChemistry Department, University of Cape Town, Rondebosch, 7701, South Africa, and cSchool of Chemical Engineering, University of KwaZulu-Natal, Durban 4041, South Africa
Correspondence e-mail: Koorbanally@ukzn.ac.za
The distinctive feature of the structure of the title compound, C16H10Cl2O2, is the formation of a zigzag chain along  via ClCl interactions [3.591 (1) and 3.631 (1) Å]. The chromanone moiety is fused with the benzene ring and adopts a half-chair conformation. The dihedral angle between the benzene ring of the chromanone moiety and the dichlorobenzene plane is 56.14 (8)°.
Data collection: APEX2 (Bruker, 2006); cell refinement: SAINT (Bruker, 2006); 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, 2012); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG5252 ).
We thank the University of KwaZulu-Natal and the South Africa Research Chairs initiative of the Department of Science and Technology for financial support and the National Research Foundation of South Africa for a bursary for KG.
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