Key indicators: single-crystal X-ray study; T = 100 K; mean (C-C) = 0.002 Å; R factor = 0.026; wR factor = 0.074; data-to-parameter ratio = 20.8.In the title compound, [Cr(C 18 H 12 F 3 P) 2 (CO) 4 ], the Cr atom is octahedrally coordinated by four carbonyl ligands and the two tertiary phosphanes that are trans to each other. The Cr atom and two carbonyl groups are on a twofold axis. The benzene rings attached to the phosphorus atom make dihedral angles of 80.32 (5), 52.91 (5) and 83.80 (5) with each other. In the crystal, C-HÁ Á ÁO and C-HÁ Á ÁF intermolecular interactions form an infinite three-dimensional network. Related literature