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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 |
|---|---|---|---|---|
| H2CO | Formaldehyde | 116.1 | 113.7 | 2.5 |
| CH4 | Methane | 109.5 | 109.5 | -0.0 |
| C2H6 | Ethane | 108.0 | 108.2 | -0.2 |
| C2H4 | Ethylene | 117.6 | 116.2 | 1.4 |
| C2H5Br | Ethyl bromide | 108.9 | 108.6 | 0.3 |
| C2H5Br | Ethyl bromide | 109.9 | 107.8 | 2.1 |
| C3H6 | Cyclopropane | 114.5 | 114.2 | 0.3 |
| CH2CHCHO | Acrolein | 118.0 | 116.4 | 1.6 |
| CH2CHCHO | Acrolein | 120.0 | 116.4 | 3.6 |
| CH2NN | diazomethane | 126.0 | 123.8 | 2.2 |
| C2H5F | fluoroethane | 108.8 | 107.4 | 1.4 |
| C2H5F | fluoroethane | 108.9 | 108.6 | 0.3 |
| C2H5F | fluoroethane | 108.7 | 108.7 | -0.0 |
| C6H6 | Fulvene | 117.0 | 116.6 | 0.4 |
| CH2PH | Phosphaethene | 117.2 | 113.4 | 3.8 |
MP4/STO-3G for aHCH
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| -0.5 | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | ||||||||||||||||||||||||||||
| Angle difference calc. - exp. (degrees) | ||||||||||||||||||||||||||||||||||||||||
| Species | Name | Difference (degrees) | |
|---|---|---|---|
| Most negative difference | C2H6 | Ethane | -0.2 |
| Most positive difference | CH2PH | Phosphaethene | 3.8 |