Knowledge Bank

Emission bands of the C$3$-Xe van der Waals complex near the 2$\mathrm{0<mrow\; data-mjx-texclass="ORD">2-</mrow>}$, 2$\mathrm{0<mrow\; data-mjx-texclass="ORD">2+</mrow>}$, and 2$\mathrm{0<mrow\; data-mjx-texclass="ORD">4-</mrow>}$ bands of the ~{A}$-$~{X} system of C$3$ have been recorded, but as yet definitive spectral assignments could not be made. Unlike those of the C$3$-Ar and C$3$-Kr complexes, the observed C$3$-bending vibrational progressions of the Xe-complex could not be fitted to a simple dipole-induced dipole model potential}\underline{\textbf{120}},~3189, 2004.}. Ab initio calculations of the Ar- and Xe-complexes have been carried out using the CCSD(T) method at the cc-pVQZ level. Tentative vibrational assignments of the Xe-complex based upon the ab initio calculation will be discussed.