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 116.1 116.2 -0.1
CH3SH Methanethiol 110.3 108.9 1.4
CH3F Methyl fluoride 110.2 109.8 0.4
H2CS Thioformaldehyde 116.5 116.2 0.3
CH2 Methylene 135.5 133.5 2.0
CH2 Methylene 102.4 133.5 -31.2
CH3NH2 methyl amine 108.4 108.0 0.4
C2H4 Ethylene 117.6 117.1 0.5
C2H6 Ethane 108.0 107.7 0.3
CH4 Methane 109.5 109.5 -0.0

QCISD(TQ)/cc-pVTZ for aHCH

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


Differences greater than 25 are in the 25 bin. Differences less than -35 are in the -35 bin.

histogram chart 10
histogram chart 8 histogram chart
histogram chart 6 histogram chart
histogram chart 4 histogram chart
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart
-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 -31.2
Most positive difference CH2 Methylene 2.0