Table 2. Molecular Parametersa for the X2Σ+ State of 24MgH Determined using Various Potential Energy Functions and Derived from the Experimental Data.
| CVb | CV + Rc | CV + R + Dc | Exp.d | |
|---|---|---|---|---|
| re (Å) | 1.72948 | 1.72890 | 1.72928 | 1.729685 |
| E + 200 (hartree) | –0.525839 | –0.833431 | –0.829159 | |
| De (cm–1) | 11,183 | 11,115 | 11,101 | 11,104.3 |
| ν (cm–1) | 1433.98 | 1432.33 | 1431.76 | 1431.978 |
| B0 (cm–1) | 5.74130 | 5.74476 | 5.74223 | 5.736507 |
The potential energy function was calculated at the MR-ACPF/aug-cc-pCV8Z level of theory, including the correction for enlargement of the basis set (see the text).
Including additional corrections for the scalar relativistic (R) and adiabatic (D) effects.
Derived from the experimental data in ref (4).