Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | |
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You are here: Calculated > Vibrations > Bad Calculations > Bad vib. Calc. vs exp. OR Resources > Bad Calculations > Vibrations > Bad vib. Calc. vs exp. |
Calculated frequencies that differ from experiment by more than 400 cm-1 or have a ratio with experiment outside of 0.7 to 1.2 are listed
Calculated vibrational frequencies ("theory" in table) are calculated at
MP3/SDD
Calculated values were scaled by 1.
Species | Name | mode | int rot | Symmetry | Experiment | Theory | difference | ratio |
---|---|---|---|---|---|---|---|---|
SO2 | Sulfur dioxide | 3 | B2 | 1362 | 1131 | -231 | 1.205 | |
NH3 | Ammonia | 2 | torsion | A1 | 950 | 722 | -228 | 1.316 |
Cl2 | Chlorine diatomic | 1 | Σg | 554 | 436 | -118 | 1.271 | |
NO | Nitric oxide | 1 | Σ | 1876 | 3711 | 1835 | 0.505 | |
BF | Boron monofluoride | 1 | Σ | 1379 | 1141 | -237 | 1.208 |