Electron diffraction investigation of gaseous perchloryl fluoride and calculation of its force field and amplitudes of vibration

Abstract

The electron diffraction pattern from gaseous perchloryl fluoride at –30° has been recorded over the range = 0·86 to 40·42 Å^–1. Least-squares refinement gave the structural parameters: r_g(1) for Cl–O 1·404(2)Å, r_g(1) for Cl–F 1·619(4)Å, ∠OClO 116·6°(0·50), u_ClO 0·036(2)Å, u_ClF 0·040(4)Å,u_OO 0·049(7)Å and u_OF 0·064(6)Å. The vibrational amplitudes obtained are in agreement with the values calculated from spectroscopic data.