Rotational spectrum, dynamics, and bond energy of the floppy dimethylether...neon var der Waals complex

摘要

The equilibrium conformation, dynamics, and dissociation energy of the weekly bonded dimethylether...Ne complex have been deduced from its pulsed jet millimeter wave spectrum. Each rotational transition is split into two compoennt lines. The corresponding vibrational splitting has been determined to be DELTAE = 807.2(9) MHz. The inversion barrier between the two equivalent minima with Ne above or below the COC plane has been calculated from this datum to be 16 cm~(-1). The dissociation energy of the complex is estimated, from the centrifugal distortion constant D_J, to be ca. 1.0 kJ/mol.