MOLECULAR-STRUCTURE OF FORMYL FLUORIDE IN THE GAS-PHASE AS DETERMINED FROM ELECTRON-DIFFRACTION AND MICROWAVE DATA

The molecular structure of formyl fluoride was determined from electron diffraction data and the microwave rotational constants of HFCO, DFCO, HF13CO and HFC18CO taken from the literature. The harmonic rotation-vibration correction B0(α) - Bz(α) and the vibrational amplitudes were calculated from a GVFF adjusted to fit the vibrational frequencies of the parent and deuterated species. The resulting parameters of the planar molecule, rg bond distances and rav angles are: CO = 1.188 ± 0.004 Å, CF = 1.346 ± 0.003 Å, CH = 1.11 ± 0.02 Å, ∠ OCF = 122.3 ± 0.2° and ∠ OCH = 130 ± 4°, where the uncertainties represent estimated limits of total error. © 1979.