| C17H14Cl2N2 | F(000) = 656 |
| Mr = 317.20 | Dx = 1.371 Mg m−3 |
| Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
| a = 7.2107 (8) Å | Cell parameters from 3778 reflections |
| b = 10.2179 (13) Å | θ = 2.6–29.9° |
| c = 20.863 (3) Å | µ = 0.42 mm−1 |
| β = 90.562 (4)° | T = 296 K |
| V = 1537.1 (3) Å3 | Plate, colourless |
| Z = 4 | 0.52 × 0.34 × 0.13 mm |