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
B1B95/cc-pCVDZ
Calculated values were scaled by 1.
Species | Name | mode | int rot | Symmetry | Experiment | Theory | difference | ratio |
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HClO4 | perchloric acid | 12 | A" | 191 | 158 | -33 | 1.209 | |
S3 | Sulfur trimer | 2 | A1 | 281 | 610 | 329 | 0.461 | |
SNO | Nitrogen oxide sulfide | 3 | A' | 792 | 514 | -278 | 1.541 |