The infrared spectra of gaseous formaldehyde-13C and -13C, D2 were collected and the harmonic frequencies were determined using Dennison's Rule. Coupled with data from formaldehyde and formaldehyde-D2, general harmonic force fields were determined based on H2CO and H213CO, D2CO and D213CO, and all four isotopic species for both observed and harmonized frequencies. It was found that anomalous values of the CH (D) stretch-bend interaction force constants are obtained when data from all four isotopic species are fit.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry