|   | 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 | 116.4 | -0.2 | 
| CH4 | Methane | 109.5 | 109.5 | -0.0 | 
| C2H6 | Ethane | 108.0 | 107.7 | 0.3 | 
| C2H4 | Ethylene | 117.6 | 117.2 | 0.4 | 
MP4=FULL/cc-pVQZ for aHCH
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| -0.3 | -0.2 | -0.1 | 0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | ||||||||||||||||||||||||||||
| Angle difference calc. - exp. (degrees) | ||||||||||||||||||||||||||||||||||||||||
| Species | Name | Difference (degrees) | |
|---|---|---|---|
| Most negative difference | H2CO | Formaldehyde | -0.2 | 
| Most positive difference | C2H4 | Ethylene | 0.4 |