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 124.1 124.8 -0.7
CHONH2 formamide 122.5 123.0 -0.5
C2H4O Ethylene oxide 114.7 115.3 -0.6
CH2CHCHO Acrolein 121.3 121.3 0.0
CH2CHCHO Acrolein 120.2 121.3 -1.1
CH3OCHO methyl formate 109.3 124.8 -15.5
CH3OCH3 Dimethyl ether 107.1 107.4 -0.3
CH3OCH3 Dimethyl ether 111.0 112.0 -1.0
CH3CH2CHO Propanal 120.5 120.0 0.5
CH2O2 Dioxirane 115.8 116.5 -0.7
CH3OC2H5 Ethane, methoxy- 107.5 107.0 0.5
CH3OC2H5 Ethane, methoxy- 111.1 112.2 -1.1
CH3OC2H5 Ethane, methoxy- 110.3 111.0 -0.7
CH3ONO Methyl nitrite 101.8 104.5 -2.7
CH3ONO Methyl nitrite 110.0 111.0 -1.1
HFCO formyl fluoride 127.3 127.7 -0.4
HCO Formyl radical 119.5 124.8 -5.3

CCSD=FULL/6-31G(2df,p) for aHCO

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


Differences greater than 8 are in the 8 bin. Differences less than -16 are in the -16 bin.

histogram chart 12
histogram chart 10 histogram chart
histogram chart 8 histogram chart
histogram chart 6 histogram chart
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart
-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH3OCHO methyl formate -15.5
Most positive difference CH3CH2CHO Propanal 0.5