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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 | 115.6 | 0.5 |
| CH4 | Methane | 109.5 | 109.5 | -0.0 |
| C2H6 | Ethane | 108.0 | 107.8 | 0.2 |
| C2H4 | Ethylene | 117.6 | 116.9 | 0.7 |
| CH3I | methyl iodide | 111.4 | 110.9 | 0.5 |
| CH2I2 | Diiodomethane | 111.6 | 111.3 | 0.3 |
| C3H6 | Cyclopropane | 114.5 | 114.8 | -0.3 |
| CH2CHCHO | Acrolein | 118.0 | 117.1 | 0.9 |
| CH2CHCHO | Acrolein | 120.0 | 117.1 | 2.9 |
| CH2O2 | Dioxirane | 117.3 | 116.4 | 0.9 |
| CH2NN | diazomethane | 126.0 | 125.1 | 0.9 |
| C2H5F | fluoroethane | 108.8 | 109.1 | -0.3 |
| C2H5F | fluoroethane | 108.9 | 108.7 | 0.2 |
| C2H5F | fluoroethane | 108.7 | 108.7 | -0.0 |
| CH2FI | fluoroiodomethane | 113.0 | 112.5 | 0.5 |
| CH3NC | methyl isocyanide | 109.4 | 109.6 | -0.2 |
QCISD(T)/6-311G** 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 | C3H6 | Cyclopropane | -0.3 |
| Most positive difference | CH2CHCHO | Acrolein | 2.9 |