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 121.9 122.4 -0.5
HCOOH Formic acid 124.1 126.1 -2.0
CHONH2 formamide 122.5 122.8 -0.3
C2H4O Ethylene oxide 114.7 114.9 -0.2
HOCH2COOH Hydroxyacetic acid 110.6 110.7 -0.1
CH2CHCHO Acrolein 121.3 120.9 0.4
CH2CHCHO Acrolein 120.2 120.9 -0.7
C3H6O 2-Propen-1-ol 113.3 111.7 1.6
C3H6O 2-Propen-1-ol 107.3 110.1 -2.8
C4H4O Furan 115.9 115.4 0.5
CH3OCH3 Dimethyl ether 107.1 106.2 1.0
CH3OCH3 Dimethyl ether 111.0 111.7 -0.7
CH3CH2CHO Propanal 120.5 120.4 0.1
C4H8O2 Ethyl acetate 108.3 108.3 0.0
CH2O2 Dioxirane 115.8 115.9 -0.1
C3H3NO Oxazole 117.1 117.8 -0.7
C3H3NO Oxazole 116.9 117.1 -0.2
CH3OC2H5 Ethane, methoxy- 107.5 106.2 1.3
CH3OC2H5 Ethane, methoxy- 111.1 111.8 -0.7
CH3OC2H5 Ethane, methoxy- 110.3 109.9 0.4
HFCO formyl fluoride 127.3 128.6 -1.3
HCO Formyl radical 119.5 125.1 -5.6

PBEPBE/6-31G for aHCO

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


Differences greater than 6 are in the 6 bin. Differences less than -6 are in the -6 bin.

histogram chart 10
histogram chart 8 histogram chart
histogram chart 6 histogram chart
histogram chart 4 histogram chart histogram chart
histogram chart 2 histogram chart histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HCO Formyl radical -5.6
Most positive difference C3H6O 2-Propen-1-ol 1.6