Crystal structure of CF3I(Cl)F.
In addition to CF3IF2 and CF3ICl2, CF3I(Cl)F is the only known example of the (trifluoromethyl)iodine dihalides. CF3I(Cl)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) A, b = 7.310(1) A, c = 20.127(1) A and eight formula units per unit cell. The final R indices [I > 2 sigma(I)] are R1 = 0.0372 and wR2 = 0.0981.
Minkwitz
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Anorganische Chemie, Fachbereich Chemie der Universität Dortmund, 44221 Dortmund, Germany.
Berkei
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