The microwave spectrum and structure of the neon-PHOSPHORUS TRIFLUORIDE (cas 13659-65-9) complex

Add time:10/01/2019    Source:sciencedirect.com

Symmetric top spectra were observed for the 20Ne·PF3 and 22Ne·PF3 van der Waals dimers using a Fourier-transform microwave spectrometer. The center-of-mass distance between Ne and PF3 is 3.373(3) Å. The experimental data, in conjunction with the van der Waals radii of the atoms and with ab initio calculations, are consistent with the neon atom on the symmetry axis over the F3 face of the PF3. Normal mode analysis of the van der Waals vibrations based on the centrifugal distortion constants yields force constants fR = 0.00647 mdyn Å−1 and fΘ = 0.00464 mdyn Å for the 20Ne·PF3 isotopic species.

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