| C21H21O3P | F(000) = 1488 |
| Mr = 352.35 | Dx = 1.297 Mg m−3 |
| Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -C 2yc | Cell parameters from 9954 reflections |
| a = 29.5721 (4) Å | θ = 1.4–30.1° |
| b = 8.2201 (1) Å | µ = 0.17 mm−1 |
| c = 14.9409 (2) Å | T = 120 K |
| β = 96.381 (1)° | Block, colourless |
| V = 3609.42 (8) Å3 | 0.47 × 0.37 × 0.11 mm |
| Z = 8 |