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
CH3COCH2CH3 2-Butanone 180.0 116.5 63.5
C5H10O 2H-Pyran, tetrahydro- 56.1 111.4 -55.3

B2PLYP/6-31G* for dCCCO

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


Differences greater than 60 are in the 60 bin. Differences less than -60 are in the -60 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2
histogram chart 0 histogram chart histogram chart
-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C5H10O 2H-Pyran, tetrahydro- -55.3
Most positive difference CH3COCH2CH3 2-Butanone 63.5