Effective Hamiltonian for degenerate vibrational states in symmetric top molecules

摘要: Abstract A mixed matrix-operator form of the effective rotational Hamiltonian has been discussed for degenerate vibrational states symmetric top molecules. In this scheme, a contact transformation can be applied to such that operators “2, +2,” −2,” and −1” l -type interactions as well Δ k = ±3 ±4 are eliminated from first-order terms expansion in small parameter λ. The results have used discuss correlation between various interaction parameters doubly fundamental levels semirigid For example, C 3 v or D molecules, is correlated with other cannot determined separately by fitting experimental data (unless there certain accidental resonances vibrational-rotational levels).