Van der Waals potential energy surface of CH2ClFCH2ClF···Xe

The rotational spectra have been assigned for six isotopologues of the CH2ClF···Xe, arising from some combinations of the 35Cl, 37Cl, 129Xe, 131Xe, 132Xe and 134Xe isotopes of Cl and Xe. The xenon atom is located out of the ClCF plane, interacting with both F and Cl atoms. All rotational transitions are split in several component lines, due to the 35Cl or 37Cl (or 131Xe) quadrupole components, and to the tunneling motion of the Xe atom between two equivalent positions, below and above the ClCF plane. The barrier between these two equivalent conformations is ca. 76 cm-1.