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
C4H10O Ethoxy ethane 110.0 108.9 1.1
HCOOH Formic acid 124.1 125.7 -1.6
CHONH2 formamide 122.5 123.4 -0.9
C2H4O Ethylene oxide 114.7 115.3 -0.6
HOCH2COOH Hydroxyacetic acid 110.6 111.8 -1.2
CH2CHCHO Acrolein 121.3 121.4 -0.1
CH2CHCHO Acrolein 120.2 121.4 -1.2
CH3OCHO methyl formate 109.3 125.2 -15.9
C3H8O2 Methane, dimethoxy- 110.3 106.7 3.6
C4H4O Furan 115.9 115.3 0.6
CH3OCH3 Dimethyl ether 107.1 107.2 -0.0
CH3OCH3 Dimethyl ether 111.0 111.6 -0.6
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 109.7 111.6 -1.9
CH3CH2CHO Propanal 120.5 120.1 0.4
C4H8O2 Ethyl acetate 108.3 108.7 -0.4
CH2O2 Dioxirane 115.8 116.6 -0.8
CH3CH(CH3)ONO Isopropyl nitrite 109.5 106.5 3.0
CH3NO3 Methyl nitrate 110.4 110.6 -0.2
CH3NO3 Methyl nitrate 103.4 104.4 -1.0
CH3ONO Methyl nitrite 101.8 104.7 -2.9
CH3ONO Methyl nitrite 110.0 110.6 -0.6
HFCO formyl fluoride 127.3 128.0 -0.7
CH3O Methoxy radical 111.3 105.1 6.2
HCO Formyl radical 119.5 124.1 -4.6

TPSSh/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 14
histogram chart 12 histogram chart
histogram chart 10 histogram chart
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 0 histogram chart histogram chart histogram chart 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 -15.9
Most positive difference CH3O Methoxy radical 6.2