The equilibrium geometries, excitation energies, force constants, and vibrational frequencies of the low-lying electronic states X2B1, 2A1, 2B2, and 2A2 of the PF2 radical have been calculated at the MRSDCI level with a double zeta plus polarization basis set. Our calculated geometry, force constant
The low-lying electronic states of H2CN+: a preliminary ab initio study
โ Scribed by J.R. Flores; J. Largo-Cabrerizo
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 393 KB
- Volume
- 137
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Ab initio molecular-orbital calculations have been carried out on the low-lying triplet and singlet electronic states of the H&N+ cation, at the SCF and Moller-Plesset levels of theory. Both triplet 'AZ and 3BZ electronic states have similar energies. The barriers to isomerization to the 'A" and 'A' electronic states of HCNH+ are estimated. It appears that >Az and 'B? states are stable towards both isomerization and dissociation. The results of mass spectroscopic experiments involving H,CN+ are discussed.
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