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 110.1 108.8 1.3
C2H5CN ethyl cyanide 178.8 179.1 -0.3
C4H5N Pyrrole 107.7 107.9 -0.2
C5H11N Piperidine 110.5 109.5 1.0
C4H9N Pyrrolidine 104.6 102.6 2.0
C2H2N2O Furazan 108.9 109.1 -0.2
C4H4N2 1,3-Diazine 121.2 121.8 -0.6
CH(CN)3 tricyanomethane 177.0 178.9 -1.9
C2H3NO Nitrosoethylene 117.1 117.0 0.1

B2PLYP=FULLultrafine/6-31G* for aCCN

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


Differences greater than 4 are in the 4 bin. Differences less than -2 are in the -2 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH(CN)3 tricyanomethane -1.9
Most positive difference C4H9N Pyrrolidine 2.0