| (NH4)2[UO2Cl4]·2H2O | Z = 1 |
| Mr = 483.95 | F(000) = 218 |
| Triclinic, P1 | Dx = 2.823 Mg m−3 |
| a = 6.6574 (4) Å | Mo Kα radiation, λ = 0.71073 Å |
| b = 6.6954 (4) Å | Cell parameters from 9764 reflections |
| c = 7.4018 (4) Å | θ = 3.5–36.7° |
| α = 99.827 (2)° | µ = 15.17 mm−1 |
| β = 93.879 (2)° | T = 100 K |
| γ = 117.354 (1)° | Block, yellow |
| V = 284.69 (3) Å3 | 0.10 × 0.03 × 0.03 mm |