Rotational dependence of giant l-type doubling in symmetric top molecules

摘要

Abstract: The first order Coriolois resonance between nondegenerate v$-s$/ and degenerate v$-t$/ fundamentals of symmetric polyatomic molecules give rise to the doubling of the sublevels of mode v$-t$/ with values of quantum number k $EQ l $EQ 1 of the projection of full angular momentum and vibrational momentum of double degenerate mode v$-t$/. In dominant approximation the energy splitting dependent lineary on the quantum number of full angular momentum J. Effective Hamiltonian for giant l-doubling in symmetric molecules has been developed on the base of theory of linked ordering schemes of rovibrational interactions. Theory of non-linear sequence transformation is applied for the analysis of obtained approximation series on J$+2$/.!8