Abstract
A new, algebraically expanded Hamiltonian is proposed to describe vibrations of strongly anharmonic polyatomic molecules. This Hamiltonian is used to study the vibrational-level energies of the C ̃ state of SO 2. A comparison with the conventional force-field method is made. Results of fitting the experimental vibrational-level energies show that (i) the algebraic Hamiltonian expansion reproduces the experimental level energies with a nearly equal root-mean-square deviation of the force-field expansion but with fewer parameters and that (ii) convergence for the suggested algebraic Hamiltonian expansion is much faster than that of the force-field expansion.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
