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metal-organic compounds
The title compound, [{(iPrO)2PCF2P(OiPr)2}Mo(CO)4] or [Mo(C13H28F2O4P2)(CO)4], crystallizes without imposed symmetry. The four-membered ring is folded by 21.2 (1)° about the PP axis. The Mo—P bonds are short [2.4351 (7) and 2.4445 (8) Å] and the P—C bonds long [1.889 (2) and 1.892 (3) Å] compared with systems lacking electronegative substituents.