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 121.9 122.3 -0.4
HCOOH Formic acid 124.1 125.5 -1.4
C2H4O Ethylene oxide 114.7 115.3 -0.6
CH2CHCHO Acrolein 121.3 121.1 0.2
CH2CHCHO Acrolein 120.2 121.1 -0.9
C3H6O 2-Propen-1-ol 113.3 111.6 1.7
C3H6O 2-Propen-1-ol 107.3 110.4 -3.1
CH3OCH3 Dimethyl ether 107.1 107.2 -0.0
CH3OCH3 Dimethyl ether 111.0 111.6 -0.6
CH3CH2CHO Propanal 120.5 120.4 0.1
C4H8O2 Ethyl acetate 108.3 108.8 -0.5
C3H3NO Oxazole 117.1 116.4 0.7
C3H3NO Oxazole 116.9 116.5 0.4
CH3OC2H5 Ethane, methoxy- 107.5 107.2 0.3
CH3OC2H5 Ethane, methoxy- 111.1 111.7 -0.6
CH3OC2H5 Ethane, methoxy- 110.3 110.1 0.2
HCO Formyl radical 119.5 123.8 -4.3

B2PLYP=FULL/6-31G* for aHCO

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


Differences greater than 1.5 are in the 1.5 bin. Differences less than -4.5 are in the -4.5 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 histogram chart histogram chart histogram chart
-4.5 -4 -3.5 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HCO Formyl radical -4.3
Most positive difference C3H6O 2-Propen-1-ol 1.7