In addition to CF3IF2 and CF3ICl2, CF3I(Cl)F is the only known example of the (trifluoromethyl)iodine dihalides, CF3I(CI)F is even at low temperatures not stable in solution and decomposes by symmetrization. It crystallizes in the orthorhombic space group Cmca with a = 6.898(1) Angstrom, b = 7.310(1) Angstrom, c = 20.127(1) Angstrom and eight formula units per unit cell. The final R indices [I > 2 sigma (I)] are R1 = 0.0372 and wR2 = 0.0981.