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 121.9 121.9 -0.0
HCOOH Formic acid 124.1 125.9 -1.8
CHONH2 formamide 122.5 122.1 0.4
C2H4O Ethylene oxide 114.7 114.4 0.3
HOCH2COOH Hydroxyacetic acid 110.6 109.7 0.9
CH2CHCHO Acrolein 121.3 120.4 0.9
CH2CHCHO Acrolein 120.2 120.4 -0.2
C3H6O 2-Propen-1-ol 113.3 110.8 2.5
C3H6O 2-Propen-1-ol 107.3 109.9 -2.6
CH3OCH3 Dimethyl ether 107.1 105.7 1.4
CH3OCH3 Dimethyl ether 111.0 111.1 -0.1
CH3CH2CHO Propanal 120.5 119.8 0.7
C4H8O2 Ethyl acetate 108.3 108.4 -0.1
CH2O2 Dioxirane 115.8 115.4 0.4
C3H3NO Oxazole 117.1 118.1 -1.0
C3H3NO Oxazole 116.9 117.4 -0.5
CH3OC2H5 Ethane, methoxy- 107.5 105.7 1.7
CH3OC2H5 Ethane, methoxy- 111.1 111.1 -0.1
CH3OC2H5 Ethane, methoxy- 110.3 109.6 0.7
CH3ONO Methyl nitrite 101.8 103.3 -1.5
CH3ONO Methyl nitrite 110.0 110.6 -0.7
HFCO formyl fluoride 127.3 128.9 -1.6
HCO Formyl radical 119.5 124.3 -4.8

MP2=FULL/6-31G for aHCO

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


Differences greater than 7 are in the 7 bin. Differences less than -5 are in the -5 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
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HCO Formyl radical -4.8
Most positive difference C3H6O 2-Propen-1-ol 2.5