| C14H9ISe2 | F(000) = 856 | 
| Mr = 462.03 | Dx = 2.175 Mg m−3 | 
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å | 
| a = 12.9606 (6) Å | Cell parameters from 9830 reflections | 
| b = 13.5999 (7) Å | θ = 3.0–27.9° | 
| c = 8.0448 (4) Å | µ = 7.40 mm−1 | 
| β = 95.585 (2)° | T = 292 K | 
| V = 1411.27 (12) Å3 | Parallelepiped, colourless | 
| Z = 4 | 0.51 × 0.47 × 0.24 mm |