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
CH3CH(NH2)COOH Alanine 125.6 113.1 12.5
CH3CH(NH2)COOH Alanine 110.3 123.5 -13.2
C3H8O2 Propylene glycol 108.1 109.3 -1.2
CH3CH2OH Ethanol 107.8 107.4 0.4
CH3COOH Acetic acid 126.6 126.3 0.3
CH3COOH Acetic acid 110.6 111.2 -0.6
CH3COCH3 Acetone 122.0 121.8 0.2
CH3CHO Acetaldehyde 123.9 124.5 -0.6
C2H4O Ethylene oxide 59.2 59.2 -0.0
CHOCH(CH3)CH3 Propanal, 2-methyl- 123.3 125.3 -2.0
CH2CHCHO Acrolein 123.9 124.2 -0.3
CH2CHCHO Acrolein 124.3 124.2 0.1
CH2ClCHO chloroacetaldehyde 123.3 121.6 1.7
C2H2O2 Ethanedial 121.2 121.4 -0.2
C4H4O Furan 110.7 110.5 0.2
C4H10O2 Ethane, 1,2-dimethoxy- 113.2 107.5 5.7
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 125.8 119.0 6.8
C4H8O2 Ethyl acetate 124.1 125.7 -1.6
C4H8O2 Ethyl acetate 111.9 110.7 1.2
C4H8O2 Ethyl acetate 108.2 107.1 1.1
C5H10O 2H-Pyran, tetrahydro- 112.0 111.8 0.2
C4H8O2 1,3-Dioxolane, 2-methyl- 105.2 103.6 1.6
C4H8O2 1,3-Dioxolane, 2-methyl- 110.9 110.8 0.1
C3H8O2 1,3-Propanediol 108.0 112.4 -4.4
C3H8O2 1,3-Propanediol 112.0 107.2 4.8
C3O2 Carbon suboxide 179.2 180.0 -0.8
CH3CH(CH3)ONO Isopropyl nitrite 107.6 109.6 -2.0
C5H10O 2-Butanone, 3-methyl- 120.8 121.3 -0.5
C4H10O Propane, 2-methoxy- 113.7 112.5 1.2
C4H10O Propane, 2-methoxy- 107.7 112.5 -4.8
C3H4O Methylketene 180.0 179.7 0.3

B2PLYP=FULLultrafine/6-31G* for aCCO

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


Differences greater than 45 are in the 45 bin. Differences less than -15 are in the -15 bin.

histogram chart 25
histogram chart 20 histogram chart
histogram chart 15 histogram chart
histogram chart 10 histogram chart
histogram chart 5 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart
-15 -10 -5 0 5 10 15 20 25 30 35 40 45
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH3CH(NH2)COOH Alanine -13.2
Most positive difference CH3CH(NH2)COOH Alanine 12.5