return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Compare Angles

18 10 26 16 25

Click on entry for experimental details.
Species Name Experimental Angle Calculated Angle Difference
H2CO Formaldehyde 116.1 116.1 0.0
CH4 Methane 109.5 109.5 -0.0
C2H6 Ethane 108.0 107.2 0.8
C2H4 Ethylene 117.6 116.6 1.0
CH2BrCl Methane, bromochloro- 109.5 111.7 -2.2
C3H8 Propane 106.1 105.7 0.4
C3H8 Propane 107.3 107.6 -0.3
C3H8 Propane 108.1 107.1 1.0
CH3CN Acetonitrile 109.5 108.4 1.1
C3H6 Cyclopropane 114.5 114.1 0.4
CH2CHCH2CH3 1-Butene 105.7 106.4 -0.7
CH2FCH2CH3 1-Fluoropropane 109.0 108.1 0.9
CH2FCH2CH3 1-Fluoropropane 107.3 106.8 0.5
CH2FCH2CH3 1-Fluoropropane 107.7 107.5 0.2
CH2FCH2CH3 1-Fluoropropane 108.5 107.4 1.1
C5H6 Propellane 116.0 115.7 0.3

LSDA/6-311+G(3df,2p) for aHCH

Histogram of angle differences (in degrees) vs number of species


Differences greater than 3.5 are in the 3.5 bin. Differences less than -2.5 are in the -2.5 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart
-2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH2BrCl Methane, bromochloro- -2.2
Most positive difference CH2FCH2CH3 1-Fluoropropane 1.1