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
C2H8N2 Ethylenediamine 110.2 115.9 -5.7
C3H2N2 Malononitrile 178.6 178.9 -0.3
C4H5N Pyrrole 107.7 107.4 0.3
C3H3NO Oxazole 109.1 109.3 -0.2
CH(CN)3 tricyanomethane 177.0 179.1 -2.1
C2N2 Cyanogen 180.0 180.0 0.0
C2H3NO Nitrosoethylene 117.1 116.8 0.3
C2H2N2O Furazan 108.9 110.9 -2.0
C2H5CN ethyl cyanide 178.8 179.1 -0.3
CH3CSNH2 Ethanethioamide 114.8 115.7 -0.9
CH3CH(NH2)COOH Alanine 110.1 107.4 2.7

PBEPBE/6-31G for aCCN

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


Differences greater than 6 are in the 6 bin. Differences less than -6 are in the -6 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C2H8N2 Ethylenediamine -5.7
Most positive difference CH3CH(NH2)COOH Alanine 2.7