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
C2H6 Ethane 110.9 111.1 -0.2
C2H4 Ethylene 121.2 121.5 -0.3
C2H2 Acetylene 180.0 180.0 0.0
C3H6 Cyclopropane 117.9 117.8 0.1
CH2CHCHO Acrolein 114.7 114.6 0.1
CH2CHCHO Acrolein 115.5 114.6 0.9
CH2CHCHO Acrolein 122.4 122.6 -0.2
CH2CHCHO Acrolein 121.0 122.6 -1.6
CH2CHCHO Acrolein 122.2 122.1 0.1
CH2CHCHO Acrolein 118.5 122.1 -3.6
CH2CHCHO Acrolein 119.8 120.8 -1.0
CH2CHCHO Acrolein 121.6 120.8 0.8
CH2CHCHO Acrolein 117.3 116.7 0.6
CH2CHCHO Acrolein 117.6 116.7 0.9
C2H5F fluoroethane 112.9 111.3 1.6
C2H5F fluoroethane 109.7 110.0 -0.3
C2H5F fluoroethane 110.4 110.3 0.1
C2HF3 Trifluoroethylene 124.0 122.9 1.1
CH2CHOH ethenol 129.1 122.6 6.5
CH2CHOH ethenol 121.7 122.0 -0.3
CH2CHOH ethenol 119.5 119.8 -0.3
C2H2F2 Ethene, 1,2-difluoro-, (Z)- 124.0 122.6 1.4
C2H2F2 Ethene, 1,2-difluoro-, (E)- 129.2 124.8 4.4
C3H5 Allyl radical 120.9 121.5 -0.6
C3H5 Allyl radical 117.7 117.9 -0.2

QCISD(T)/6-311G** for aHCC

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


Differences greater than 8 are in the 8 bin. Differences less than -4 are in the -4 bin.

histogram chart 12
histogram chart 10 histogram chart
histogram chart 8 histogram chart
histogram chart 6 histogram chart
histogram chart 4 histogram chart histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH2CHCHO Acrolein -3.6
Most positive difference CH2CHOH ethenol 6.5