Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | |
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Species | Name | Experimental Angle | Calculated Angle | Difference |
---|---|---|---|---|
H2CO | Formaldehyde | 116.1 | 116.5 | -0.3 |
CH4 | Methane | 109.5 | 109.5 | -0.0 |
C2H6 | Ethane | 108.0 | 107.8 | 0.2 |
C2H4 | Ethylene | 117.6 | 116.8 | 0.8 |
C3H6 | Cyclopropane | 114.5 | 114.5 | 0.0 |
CH2O2 | Dioxirane | 117.3 | 116.6 | 0.7 |
CH3NC | methyl isocyanide | 109.4 | 109.7 | -0.3 |
CH3 | Methyl radical | 120.0 | 120.0 | -0.0 |
CH2 | Methylene | 135.5 | 132.6 | 2.9 |
CH2 | Methylene | 102.4 | 132.6 | -30.2 |
QCISD(T)/6-31+G** for aHCH
10 | ||||||||||||||||||||||||||||||||||||||||
8 | ||||||||||||||||||||||||||||||||||||||||
6 | ||||||||||||||||||||||||||||||||||||||||
4 | ||||||||||||||||||||||||||||||||||||||||
2 | ||||||||||||||||||||||||||||||||||||||||
0 | ||||||||||||||||||||||||||||||||||||||||
-35 | -30 | -25 | -20 | -15 | -10 | -5 | 0 | 5 | 10 | 15 | 20 | 25 | ||||||||||||||||||||||||||||
Angle difference calc. - exp. (degrees) |
Species | Name | Difference (degrees) | |
---|---|---|---|
Most negative difference | CH2 | Methylene | -30.2 |
Most positive difference | CH2 | Methylene | 2.9 |