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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Home > Geometry > Experimental > Same bond/angle many molecules OR Comparisons > Geometry > Bonds, angles > Same bond/angle many molecules | |
| Species | Name | Experimental Angle | Calculated Angle | Difference |
|---|---|---|---|---|
| C2H6 | Ethane | 110.9 | 111.2 | -0.3 |
| C2H4 | Ethylene | 121.2 | 121.6 | -0.4 |
| C2H2 | Acetylene | 180.0 | 180.0 | 0.0 |
| CH3CH2NH2 | Ethylamine | 113.2 | 111.1 | 2.1 |
| C3H6 | Cyclopropane | 117.9 | 118.0 | -0.1 |
| C4H4N2 | Pyrazine | 120.0 | 120.8 | -0.9 |
| C3H5 | Allyl radical | 120.9 | 121.4 | -0.5 |
| C3H5 | Allyl radical | 117.7 | 117.8 | -0.1 |
CISD/6-31+G** for aHCC
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| -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | ||||||||||||||||||||||||||||
| Angle difference calc. - exp. (degrees) | ||||||||||||||||||||||||||||||||||||||||
| Species | Name | Difference (degrees) | |
|---|---|---|---|
| Most negative difference | C4H4N2 | Pyrazine | -0.9 |
| Most positive difference | CH3CH2NH2 | Ethylamine | 2.1 |