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
CH3CHO Acetaldehyde 123.9 124.9 -1.0
C2H4O Ethylene oxide 59.2 60.6 -1.4
CF3COOH trifluoroacetic acid 126.8 126.2 0.6
CF3COOH trifluoroacetic acid 111.1 107.5 3.6
ClCOClCO Oxalyl chloride 124.2 128.4 -4.2
CH3CH2CHO Propanal 124.4 123.9 0.5
C4H8O2 Ethyl acetate 124.1 128.0 -3.9
C4H8O2 Ethyl acetate 111.9 109.1 2.8
C4H8O2 Ethyl acetate 108.2 105.0 3.2
C2H2O4 Oxalic Acid 123.1 121.9 1.2
C3H3NO Oxazole 108.1 108.8 -0.7
C3O2 Carbon suboxide 179.2 180.0 -0.8
CH3OC2H5 Ethane, methoxy- 108.2 105.9 2.3
C3H2O3 vinylene carbonate 108.7 109.8 -1.1

MP4=FULL/3-21G for aCCO

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 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 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 ClCOClCO Oxalyl chloride -4.2
Most positive difference CF3COOH trifluoroacetic acid 3.6