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
C3H4N2 1H-Pyrazole 104.1 112.8 -8.7
C3H4N2 1H-Pyrazole 113.0 112.8 0.2
C4H4N2 Pyridazine 119.3 120.0 -0.7
C2H6N2O2 Dimethylnitroamine 116.2 115.8 0.4

HF/6-31G* for aCNN

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


Differences greater than 3 are in the 3 bin. Differences less than -9 are in the -9 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2
histogram chart 0 histogram chart histogram chart histogram chart
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C3H4N2 1H-Pyrazole -8.7
Most positive difference C2H6N2O2 Dimethylnitroamine 0.4