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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 |
|---|---|---|---|---|
| HCOOH | Formic acid | 124.9 | 125.1 | -0.2 |
| CH3COOH | Acetic acid | 123.0 | 122.5 | 0.5 |
| CH3OCHO | methyl formate | 125.9 | 124.8 | 1.1 |
| C3H6O3 | 1,3,5-Trioxane | 112.0 | 111.9 | 0.1 |
| CO2 | Carbon dioxide | 180.0 | 180.0 | 0.0 |
| C4H8O2 | Ethyl acetate | 124.0 | 122.7 | 1.3 |
| C2H2O4 | Oxalic Acid | 125.0 | 126.8 | -1.8 |
| CH2O2 | Dioxirane | 66.2 | 65.0 | 1.2 |
| C4H8O2 | 1,3-Dioxane | 115.0 | 112.9 | 2.1 |
| C3H2O3 | vinylene carbonate | 108.8 | 106.8 | 2.0 |
| HOCO+ | Hydrocarboxyl cation | 174.4 | 173.6 | 0.8 |
| C2H4O4 | Formic acid dimer | 126.2 | 126.7 | -0.5 |
HSEh1PBE/3-21G for aOCO
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| -2 | -1.5 | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | ||||||||||||||||||||||||||||
| Angle difference calc. - exp. (degrees) | ||||||||||||||||||||||||||||||||||||||||
| Species | Name | Difference (degrees) | |
|---|---|---|---|
| Most negative difference | C2H2O4 | Oxalic Acid | -1.8 |
| Most positive difference | C4H8O2 | 1,3-Dioxane | 2.1 |