The molecular structure of
trans
-dichlorodioxobis(triphenylphosphate) molybdenum(VI), MoO
2
Cl
2
[OP(OPh)
3
]
2
has been determined. Crystal data: Monoclinic,
P
n, a = 11.767(2), b = 10.341(2), c = 15.682(3) Å,
β
= 92.27(3)°, V = 1906.8(7) Å
-3
, Z = 2. Trans-dichlorodioxobis(triphenylphosphate)molybdenum(VI) was obtained by the reaction of molybdenum oxide, HCl and triphenylphosphate and was characterized by elemental analysis, IR, and
1
H-NMR spectroscopy.